Beginner31 min read27 Jan 2025

Mushroom Growing Equipment List UK: Complete Buyer's Guide (£55–£400)

Best mushroom growing equipment UK 2025. Pressure cookers, still air boxes, dehydrators — with prices. Budget starter setup from £55.

Growing mushrooms at home in the UK doesn't require a laboratory — but having the right mushroom cultivation tools makes the difference between consistent harvests and repeated contamination. This guide covers everything you need for a home mushroom lab setup, with specific product recommendations at every price point so you can buy with confidence, whether you're starting on a budget or building a serious grow room.

Already know what you need? Jump to Complete Shopping Lists →

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Should I Just Buy a Ready-Made Grow Kit?

If you've seen pre-made mushroom grow kits advertised — the ones where you just add water and wait — you might wonder if all this equipment is really necessary.

Ready-made grow kits have their place:

  • Zero setup required — open the box and start growing
  • No equipment investment upfront
  • Great for testing whether you enjoy mushroom growing

But they have significant limitations:

  • More expensive per harvest — A £20–30 kit produces one flush. The same money buys substrate for 5–10 grows once you have basic equipment.
  • Limited scalability — You can't expand production without buying more kits at full price
  • No skill development — You don't learn sterile technique, substrate preparation, or troubleshooting
  • Species restrictions — Most kits are oyster mushrooms. Want Cordyceps, Lion's Mane, or Reishi? You need your own equipment.

The bottom line: If you want repeat harvests and lower cost per grow, investing in a proper mushroom growing setup pays off within 2–3 grows. An £80 starter setup replaces £150+ worth of grow kits over a year — and you'll actually understand what you're doing.

💡 Our recommendation: Try one ready-made kit if you're completely new. If you enjoy the harvest and want more, come back here and build a proper setup. The equipment investment pays for itself quickly.


The Essential Equipment List

Here's a complete overview of mushroom growing supplies covered in this guide. You don't need all of it — see the budget tiers at the end for what to buy at each level.

  • Pressure cooker (or large pot for pasteurisation)
  • Still air box or flow hood
  • Grow bags or containers
  • Syringes and needles
  • Isopropyl alcohol (70%)
  • Nitrile gloves
  • Micropore tape
  • Thermometer / hygrometer
  • Spray bottle or humidifier
  • Magnetic stirrer (optional, for liquid culture)
  • Food dehydrator (for drying harvests)
  • Substrates and ingredients

Quick Cost Guide

Setup LevelTotal CostWhat You Can Grow
Budget Starter£55–£80Oyster mushrooms (straw bucket method)
Intermediate£130–£190Cordyceps, Lion's Mane, grain spawn
Advanced£260–£420Multiple species, scaled production

Already have a large pot? The budget setup drops to ~£40–£55.


Best Pressure Cooker for Mushroom Growing UK

Price range: £40–£200+

The pressure cooker is the single biggest investment in mushroom sterilisation equipment. It sterilises substrates and grain at 121°C (15 PSI), killing all contaminants including heat-resistant bacterial spores. If you're growing on straw only (oyster mushrooms), you can skip this — pasteurisation with a large pot is enough. For everything else, a pressure cooker is essential.

⚠️ Avoid electric pressure cookers for sterilisation. Most (including Instant Pot and Ninja) max out at 11–12 PSI — not enough for reliable sterilisation. You need 15 PSI.

What to look for

  • Capacity: 20L minimum. Larger is better — you'll fill it.
  • 15 PSI capability: The magic number for sterilisation (121°C).
  • Stove-top design: More reliable pressure control than electric models.
  • Rack/trivet included: Keeps jars off the bottom to prevent cracking.

Pressure Cooker Comparison

ModelCapacityMax PSIPrice (approx.)Best forBuy
Presto 23-Quart (01781)22L15 PSI£80–£110Best value — the community standardAmazon UK
Buffalo QCP43535L15 PSI£120–£160Larger batches, serious hobbyistsAmazon UK
Hawkins Big Boy14–22L15 PSI£60–£100Budget stove-top, multiple sizesAmazon UK
All American 92121L15 PSI£180–£250Lifetime buy — no gasket to replaceAmazon UK
Instant Pot Duo (electric)6–8L~12 PSI£60–£90Not recommended for sterilisationAmazon UK

Why We Recommend the Presto 23-Quart

The Presto 23-Quart has been the mushroom growing community's go-to pressure cooker for over a decade. Here's why:

  • Reliable 15 PSI — Hits and holds sterilisation temperature (121°C) consistently
  • Community-tested — Decades of successful use means troubleshooting advice is everywhere
  • Affordable gasket replacements — £8–12 when you eventually need one (every 2–3 years with regular use)
  • Holds 7–10 jars per run — Makes efficient use of the 90-minute sterilisation cycle
  • Under £100 — Best value for serious hobbyists

Real-world comparison: A 6L electric pressure cooker (like an Instant Pot Duo) fits only 2–3 jars, struggles to maintain 15 PSI, and takes the same 90 minutes per cycle. You'll run 3–4 batches to match what a Presto does in one. Most growers who start with an electric cooker eventually buy a Presto anyway — save yourself the money and frustration.

💡 Beginner Tip: Check secondhand markets (Facebook Marketplace, Gumtree, charity shops) for pressure cookers. Older stove-top models often hit 15 PSI reliably and cost a fraction of new.

Can I use an Instant Pot?

Electric pressure cookers typically reach only 11–12 PSI (about 116°C). Some growers report success with extended cycle times, but contamination rates are higher. For substrates like supplemented sawdust and grain spawn, a stove-top model at 15 PSI is significantly more reliable.

⚠️ Bottom line: If you're buying new specifically for mushroom growing, get a stove-top model. Your contamination rates will thank you.

Full pressure cooker sterilisation guide →


Best Still Air Box for Mushroom Growing (SAB)

Price range: £10–£30 DIY / £50–£150 pre-made

A still air box is a clear plastic tub with arm holes that gives you a near-sterile workspace for inoculation. Air contaminants settle to the bottom of the enclosed space, keeping your work clean. It's the most cost-effective way to reduce contamination.

💡 Beginner Tip: The SAB is arguably more important than the pressure cooker. Perfect sterilisation is worthless if you contaminate during inoculation. Build this first.

DIY vs Pre-Made

OptionCostProsConsBuy
DIY (plastic tub + hole saw)£10–£30Cheap, customisable sizeRough edges, less polished
Foldable pop-up SAB (90×60×60cm)£20–£30Folds flat for storage, includes gloves, ready to useLess rigid than a solid tubAmazon UK
Pre-made SAB£50–£100Clean finish, arm port gasketsMore expensive, fixed size
Laminar flow hood£150–£400+Professional-grade, hands-freeExpensive, needs HEPA filter replacement

DIY Materials

Why We Recommend the DIY Really Useful Box SAB

After seeing hundreds of setups, the DIY approach consistently outperforms pre-made options:

  • Under £25 total cost — Box (£15–18) + hole saw (£8–12)
  • 84L gives generous working room — Space for jars, tools, and both arms without crowding
  • Clear plastic lets you see what you're doing — Critical for precision work
  • 110mm holes fit adult arms comfortably — Even with nitrile gloves
  • Rigid construction — Unlike foldable pop-up SABs, it stays stable during work

Real-world experience: Growers using foldable pop-up SABs report they collapse inward during work, disturbing the still air. The rigid Really Useful Box stays put. The £10 savings on a pop-up isn't worth the frustration.

⚠️ Common mistake: Waving your arms around inside the SAB. Slow, deliberate movements keep the air still. Fast movements stir up contaminants from the bottom.

Full still air box build guide →


Grow Bags and Containers

Price range: £5–£30

You need something to hold your substrate during colonisation and fruiting. The right container depends on your species and method.

Container Comparison

ContainerBest forCostReusable?NotesShop
Ready-to-inoculate LC jars (2-pack)Liquid culture — no prep needed£29.99Yes (jar)Pre-sterilised with injection port + filterShop ours →
Unicorn 14A bags (filter patch)Supplemented sawdust blocks£15–£25 for 25NoIndustry standard, 0.2µm filterAmazon UK
Generic polypropylene bagsGrain spawn, bulk substrate£8–£15 for 50NoNeed impulse sealerAmazon UK
Mason jars (500ml–1L)Rice jars, grain spawn, LC£15–£25 for 6–12YesModify lids with injection portsAmazon UK
5-gallon bucket (20L)Straw bucket method (oysters)£3–£5 eachYesDrill 10mm holes for fruiting
Deli cups (500ml)Agar work, small grain batches£5–£8 for 50NoCheap and stackableAmazon UK

Skip the prep work: Ready-to-inoculate LC jars — Our LC jars come pre-sterilised with a self-healing injection port and 0.22µm filter patch. Just inject your liquid culture — no pressure cooker or lid modification needed.

Our pick for DIY: Mason jars — Versatile, reusable, and work for grain spawn, rice jars, and liquid culture. Wide-mouth jars from Kilner are ideal. Kilner 500ml 6-pack (£18–22) or Kilner 1L 12-pack (£35–45). You'll need to add injection ports to the lids.

Our pick for sawdust blocks: Unicorn 14A bags — The professional standard. The built-in 0.2µm filter patch allows gas exchange while blocking contaminants. Available from specialist mycology suppliers like Mushroom Supplies UK or Unicorn Bags direct.

Impulse Sealer

If using plain polypropylene bags, you'll need an impulse sealer to close them. A 200mm or 300mm impulse sealer costs £15–£25 on Amazon UK and is a worthwhile investment if you're doing regular batches.

💡 Beginner Tip: Start with mason jars before moving to bags. Jars are reusable, easier to inspect for contamination, and don't require an impulse sealer. Graduate to bags once you're doing larger batches.


Syringes and Needles

Price range: £5–£15

Syringes are used to inject liquid culture into substrate containers. You'll need the right size and type.

What to buy

ItemSpecificationWhyCostShop
Syringes10ml, Luer lockStandard volume for LC inoculationFrom £2.50 (5-pack)Shop ours →
Needles18 gauge (18G), 38mmWide enough for mycelium fragmentsFrom £2.00 (5-pack)Shop ours →
HEPA syringe filters0.22µm, Luer lockFor sterile air exchange in LC jars£8.99 (5-pack)Shop ours →

Our pick: 10ml Luer lock syringes + 18G needles — Luer lock is important — the twist-on connection prevents the needle popping off under pressure during injection. Blunt-tip 18G needles are ideal as they're wide enough to pass mycelium fragments without shearing them.

We stock syringes, needles, and HEPA syringe filters:

💡 Beginner Tip: Buy more syringes and needles than you think you need. They're cheap, and having spares means you're never flame-sterilising a needle mid-session and risking contamination.


Sterile Supplies

Price range: £15–£30 total

These are the consumables you'll use every session. Buy in bulk — they're cheap and you'll go through them.

Isopropyl Alcohol (IPA)

ConcentrationUseCost
70% IPA (recommended)Surface disinfection, hand/glove spray£6–£10 for 1L
99% IPAFlame sterilisation, cleaning tools£8–£12 for 1L

💡 Why 70%, not 99%? Counter-intuitively, 70% IPA is a better disinfectant than 99%. The water content helps it penetrate cell walls. Use 70% for wiping surfaces and spraying gloves; keep 99% for cleaning tools and flaming.

Our pick: 70% IPA in a trigger spray bottle — A 1L spray bottle (£8–12) or 500ml spray bottle (£5–8) ready to use. Brands like Mylands or generic laboratory-grade IPA from Amazon UK work identically.

Nitrile Gloves

  • Size: Buy your actual size (S/M/L). Loose gloves catch on things.
  • Material: Nitrile, not latex. Latex is more porous and causes allergies.
  • Quantity: Box of 100 — you'll go through them.
  • Cost: £8–£12 for 100

Our pick: Nitrile gloves (box of 100) — Standard medical-grade nitrile. £5–8 on Amazon UK, or available at Screwfix and pharmacies.

Micropore Tape

3M Micropore tape (the white paper medical tape) allows gas exchange while blocking contaminants. Used for taping jar lids, covering injection points, and sealing filter patches.

  • Size: 25mm width is the most useful
  • Cost: £2–£4 per roll

Our pick: 3M Micropore 25mm — The original and still the best. £5–8 on Amazon UK, or available at Boots and Superdrug. One roll lasts months.

⚠️ Learn from our mistakes: Avoid "Transport" tape. Transpore (the clear plastic 3M tape) looks similar but is not the same as Micropore. More importantly, never use generic "transport tape" — we've seen it melt and warp in pressure cookers, and the adhesive breaks down, allowing contaminants in. Stick with the white paper Micropore tape specifically. The few pence saved isn't worth losing a batch to contamination.

Injection Ports

Self-healing silicone injection ports let you inoculate jars without opening them — just push a needle through the port and inject. Essential for making your own LC jars or grain spawn jars.

  • Cost: £6–£7 for a 10-pack

We stock theseSterile Injection Ports (10 pack) →. Medical-grade silicone, self-healing after each use.

Parafilm

Parafilm M is a self-sealing laboratory film used to wrap agar plates and jar rims. It stretches, sticks to itself, and creates a semi-permeable seal. Not essential for beginners, but very useful once you move to agar work.


Magnetic Stirrer

Price range: £20–£60

A magnetic stirrer keeps liquid culture in constant motion, promoting faster mycelium growth and preventing clumping. Not essential for beginners, but a worthwhile upgrade once you're making your own liquid cultures regularly.

How it works

A magnetic stir bar sits inside your LC jar. The stirrer base contains a rotating magnet that spins the bar, keeping the liquid gently agitated 24/7. This distributes nutrients evenly and encourages healthy, vigorous mycelium growth.

What to look for

  • Speed control: Variable speed lets you dial in gentle agitation (too fast shears mycelium)
  • Stir bar included: Most stirrers come with a basic bar; PTFE-coated bars are ideal
  • Size: A compact unit fits on a shelf; larger lab-grade units are overkill for home use
TypeModelCostBest forBuy
Basic magnetic stirrer3000mL with 4 stir bars~£29Home LC productionAmazon UK
Heated magnetic stirrerVarious brands£40–£80Not needed for LC — skip the heat

Our pick: Basic magnetic stirrer with stir bars — 3000mL capacity, variable speed, and includes 4 stir bars for ~£29. Heated versions are unnecessary for liquid culture and risk overheating.

⚠️ Don't use the heating function — if you buy a heated stirrer, leave the heat off. Liquid culture grows best at room temperature (20–24°C). Heat promotes bacterial contamination.

💡 Beginner Tip: You don't need a magnetic stirrer to make successful liquid culture. Manual swirling once or twice daily works fine. A stirrer just speeds up colonisation and produces more consistent results.


Agar Work Equipment (Optional)

Price range: £20–£60

Agar work lets you isolate clean genetics, clone wild mushrooms, and store cultures long-term. It's not required for beginners, but opens up advanced techniques once you're comfortable with basic cultivation.

What you need for agar work

ItemPurposeCostNotes
Pre-poured agar platesReady-to-use, no prep£10–£15 for 10Easiest start — available from specialist suppliers
Parafilm MSeal plates, semi-permeable£12–£16Stretches, self-seals, lasts ages
Scalpel + spare bladesTransfers, cloning£5–£8#11 blade is standard
Spirit lamp or lighterFlame sterilisation£5–£10Alcohol lamp or long-reach lighter
Small SAB or laminar flowClean workspaceSee SAB sectionSame setup as inoculation

Do I need agar as a beginner?

No. Liquid culture syringes (like ours) skip agar entirely — you can go straight from syringe to grain or substrate. Agar makes sense when:

  • You want to isolate fast-growing genetics
  • You're cloning a particularly productive mushroom
  • You need to clean up a contaminated culture
  • You want to store cultures long-term (slants)

💡 Beginner recommendation: Master inoculation and fruiting with liquid cultures first. Move to agar once you've had 5–10 successful grows and want to explore genetics.


Thermometer and Humidity Gauge for Mushroom Growing

Price range: £10–£30

This grow room equipment is essential — mushrooms are sensitive to temperature and humidity during fruiting. Guessing leads to inconsistent results.

Thermometer / Hygrometer

TypeFeaturesCostBest for
Basic digital thermo-hygrometerTemperature + humidity display£6–£10Single growing area
Min/max memory modelRecords high and low readings£10–£15Tracking overnight swings
WiFi / Bluetooth sensorRemote monitoring via phone app£15–£30Multiple zones, serious growers

Our pick: ThermoPro TP50 (or TP60 for remote) — The TP50 is the go-to budget option: accurate, readable display, under £10. If you want phone alerts and logging, the TP60 adds Bluetooth for about £15–£20. Both available on Amazon UK.

⚠️ Common mistake: Placing the sensor on a shelf above the growing area. Temperature and humidity vary significantly with height — place it at substrate level for accurate readings.

Troubleshooting temperature issues? Our troubleshooting guide covers common environmental problems.


Humidity Control for Mushroom Growing

Price range: £5–£20

Fruiting mushrooms need 80–95% humidity. Too dry and pins abort; too wet and you invite bacterial contamination.

Options

MethodCostBest forNotes
Hand mister (fine spray)£2–£5Small setups, 1–3 blocksMist 2–3 times daily
Pressurised spray bottle£5–£10Better mist quality, less effortMore consistent droplet size
Ultrasonic humidifier£15–£30Fruiting chambers, multiple blocksAutomates humidity; needs timer
Humidity tent (plastic bag)£0–£2Single block or bucketSimple but effective

Our pick for beginners: A quality fine-mist spray bottle (500ml) — Avoid cheap bottles that produce large droplets — you want a fine mist that raises humidity without soaking the substrate. The Driew or Canyon fine-mist bottles (Amazon UK, £4–£8) work well.

Our pick for scaling up: Small ultrasonic humidifier + timer plug — A basic cool-mist humidifier (£15–£20) on a timer plug (£5–£8) gives hands-off humidity control. Point the output into your fruiting chamber or tent.

⚠️ Avoid warm-mist humidifiers — the heat encourages bacterial growth. Always use cool-mist or ultrasonic models.

💡 Beginner Tip: Mist the walls and air, not the substrate directly. Wet substrate surfaces invite bacterial contamination and cobweb mould.


Best Dehydrator for Drying Mushrooms UK

Price range: £35–£280

Once you're harvesting, you need to dry your mushrooms quickly to preserve them. Fresh mushrooms are 90%+ water and will rot or go mouldy within days. A food dehydrator removes moisture efficiently, giving you shelf-stable dried mushrooms that last months.

Why not just air dry?

Air drying works for small quantities in dry climates, but it's slow and unreliable in the UK's humidity. Mushrooms can start decomposing before they're fully dry, leading to off-flavours and reduced potency. A dehydrator gives consistent results every time.

What to look for

  • Temperature control: Adjustable temperature (35–70°C) lets you dry different species optimally
  • Stackable trays: More trays = more capacity per batch
  • Airflow design: Rear-mounted fans distribute heat more evenly than bottom-mounted
  • Timer: Useful but not essential — most drying takes 6–12 hours
TypeModelCostBest forBuy
Basic stackableVonShef 5 Tier~£38Occasional harvestsAmazon UK
Mid-range with temp controlAigostar 5 Tier 380W~£57Regular growersAmazon UK
Stainless steelSousVideTools/Hendi 6 Tray~£128High volume, long-term useAmazon UK
Premium commercialExcalibur 9 Tray~£275Serious production, lifetime buyAmazon UK

Our pick: Aigostar 5 Tier — Good temperature control (35–70°C), 380W motor, and enough capacity for regular harvests at a reasonable price. The VonShef is a solid budget alternative if you're just starting out.

💡 Drying temperature: Most gourmet mushrooms dry well at 50–60°C. Start at 35°C for the first hour to avoid case hardening (where the outside dries before moisture escapes from inside), then increase to 50–60°C until cracker-dry.

Storage tip: Once fully dry (they should snap, not bend), store in airtight containers with silica gel packets. Properly dried mushrooms keep for 6–12 months at room temperature, longer if refrigerated or frozen.

Drying Cordyceps? See our Cordyceps harvest and drying guide for species-specific temperatures.


Substrates and Ingredients

Price range: £10–£30

Where you buy substrate ingredients depends on what you're growing.

Common Substrates and UK Sources

IngredientUsed forWhere to buy (UK)Cost
Wheat strawOyster mushrooms (pasteurised)Farm supply shops, eBay, local farms£5–£10 per bale
Hardwood sawdust (oak/beech)Sawdust blocks (sterilised)Woodworking suppliers, eBay£8–£15 for 10kg
Wheat branSupplementing sawdust blocksHealth food shops, Amazon UK£3–£5 per kg
Brown riceRice jar methodAny supermarket£2–£3 per kg
VermiculiteRice jars (BRF cakes)Garden centres, B&Q, Amazon UK£4–£6 for 10L
Spent coffee groundsSupplementing straw (up to 30%)Free from any coffee shopFree
Gypsum (calcium sulphate)pH buffer for grain spawnHomebrew shops, Amazon UK£3–£5 per kg

Our pick for Cordyceps: Egg substrate — Uses kitchen ingredients (eggs, rice, nutritional yeast) for excellent cordycepin production. See our egg substrate recipe →

Our pick for oyster growers: Wheat straw — Ask local farms or equestrian suppliers for a small bale. A single bale (£5–£10) provides enough straw for dozens of buckets. Chop to 5–10cm lengths and pasteurise.

💡 Beginner Tip: Store substrates in sealed containers away from moisture. Damp substrate ingredients grow mould before you even use them.


Different mushroom species have different equipment requirements. Use this guide to see exactly what you need for your chosen species.

Best Equipment for Oyster Mushrooms

Beginner

Estimated Setup Cost

£55–£80

Difficulty

Easiest species to grow

Equipment needed:

  • Large pot (for pasteurisation)
  • 20L bucket with holes
  • Wheat straw
  • Still air box
  • Spray bottle
  • Liquid culture syringe

No pressure cooker needed. Pasteurised straw method is forgiving and fast.

Species at a Glance

  • Oyster mushrooms (Blue, Pink, Phoenix) — Easiest. Pasteurised straw, no pressure cooker needed.
  • Lion's Mane — Requires sterilised substrate (pressure cooker). Worth the extra effort.
  • Cordyceps militaris — Specialised setup. See our Cordyceps cultivation guide.
  • Shiitake — Supplemented sawdust blocks, longer colonisation. Intermediate difficulty.
  • Reishi — Similar to Shiitake. Supplemented sawdust, patient fruiting.

Complete Shopping Lists by Budget

These complete mushroom growing setup lists group the essential tools by experience level and budget. Each setup is designed to get you growing with minimal waste.

💡 Don't buy everything at once. Start with the budget list, learn the basics, then upgrade as you identify your actual needs. Many beginners over-buy equipment they never use.

Budget Starter — Cheapest Way to Grow Mushrooms UK (≈£55–£80)

For growing oyster mushrooms on pasteurised straw. No pressure cooker needed.

#ItemApprox. cost
120L bucket with lid (drill your own holes)£3–£5
2Wheat straw (small bale)£5–£10
3Large pot for pasteurisation (20L+)£15–£25 (or use existing)
4Really Useful Box 64L (SAB)£12–£15
5Hole saw 110mm (for SAB)£8–£12
670% IPA (1L)£8–£12
7Nitrile gloves (box of 100)£5–£8
810ml syringes + 18G needles (5 each)£5–£8
9Spray bottle (fine mist)£3–£5
10Digital thermo-hygrometer£6–£10
Total≈£55–£80

Add: Liquid culture syringe from our shop →

Shortcut: Our LC Starter Kit bundles ready-to-inoculate jars, injection ports, HEPA filters, and syringes — everything in this list except the bucket, straw, pot, SAB, and consumables.


Intermediate Setup — Grain Spawn + Sawdust Blocks (≈£120–£180)

For growing Cordyceps, oysters on supplemented sawdust, or any species requiring sterilised substrate.

⚠️ The pressure cooker is the big jump here. Make sure you've successfully completed a few pasteurised straw grows before investing. This confirms you enjoy the hobby and your sterile technique is solid.

#ItemApprox. costShop
1Presto 23-Quart pressure cooker£80–£110Amazon UK
2Really Useful Box 84L (SAB)£15–£18Amazon UK
3Hole saw 110mm£8–£12Amazon UK
4Mason jars 500ml (6-pack)£18–£22Amazon UK
5Injection ports (10 pack)£6.99Shop ours →
670% IPA (1L) spray bottle£8–£12Amazon UK
7Nitrile gloves (box of 100)£5–£8Amazon UK
810ml Luer lock syringes + 18G needles (10 each)£8–£12Amazon UK
9HEPA syringe filters (5 pack)£8.99Shop ours →
10Micropore tape 25mm£5–£8Amazon UK
11ThermoPro TP50 thermo-hygrometer£8–£10Amazon UK
12Brown rice + vermiculite£5–£8Supermarket
Total≈£130–£190

Add: Liquid culture syringe from our shop →

Shortcut: Our LC Starter Kit bundles ready-to-inoculate jars, injection ports, HEPA filters, and syringes — saving you 4 items from this list.


Advanced Setup — Serious Hobbyist (≈£250–£400)

For consistent production, multiple species, and scaling up.

#ItemApprox. costShop
1Buffalo 35L pressure cooker£120–£160Amazon UK
2Really Useful Box 84L (SAB) or flow hood kit£15–£150Amazon UK
3Unicorn 14A bags (25-pack)£15–£25Amazon UK
4200mm impulse sealer£15–£25Amazon UK
5Mason jars 1L (12-pack)£35–£45Amazon UK
6Injection ports (10 pack)£6.99Shop ours →
770% IPA (5L)£15–£20Amazon UK
8Nitrile gloves (box of 100)£5–£8Amazon UK
9Luer lock syringes + needles£8–£12Amazon UK
10HEPA syringe filters (5 pack)£8.99Shop ours →
11Micropore tape + Parafilm£15–£25Amazon UK
12ThermoPro TP60 (Bluetooth)£15–£20Amazon UK
13Ultrasonic humidifier + timer plug£20–£28Amazon UK
14Hardwood sawdust (10kg) + wheat bran (2kg)£12–£18eBay
Total≈£260–£420

Add: Multiple liquid culture syringes from our shop →


Where to Buy in the UK

General Equipment

  • Amazon UK — Widest selection for pressure cookers, syringes, gloves, IPA, thermometers. Prime delivery is convenient. Check seller ratings on lab supplies.
  • Screwfix — Hole saws, IPA, nitrile gloves. Click and collect is fast.
  • B&Q / Homebase — Storage boxes (SAB), vermiculite, garden supplies.

Specialist Mycology Supplies

  • Mushroom Supplies UK — Unicorn bags, filter patches, agar plates, grain spawn bags. UK-based specialist.
  • Mycotown — Grow bags, substrates, and mycology-specific equipment.
  • Midlands Mycology — Flow hood kits, pre-poured agar, lab supplies.

Substrates and Ingredients

  • Supermarkets — Brown rice, wheat bran (health food aisle).
  • Farm suppliers / equestrian shops — Wheat straw in bales.
  • eBay — Hardwood sawdust, bulk vermiculite, gypsum. Often cheaper than Amazon for raw materials.
  • Homebrew shops — Gypsum, pH testing supplies.

Common Equipment Buying Mistakes

After helping hundreds of growers get started, we see the same mistakes repeated. Avoid these and you'll save money and frustration.

1. Buying an electric pressure cooker for sterilisation

Electric pressure cookers (Instant Pot, Ninja, etc.) max out at 11–12 PSI. Sterilisation requires 15 PSI (121°C). We see new growers buy an Instant Pot, struggle with contamination for months, then finally buy a stove-top model. Save yourself the trouble — get a stove-top pressure cooker from the start.

2. Buying a pressure cooker that's too small

A 6-litre pressure cooker fits 2–3 jars. A 22-litre fits 7–10 jars. Both take 90 minutes to sterilise. The time investment is identical, but the output is 3–4x higher with a larger cooker. Buy at least 20 litres — you'll thank yourself later.

3. Skipping the still air box

Some beginners think they can inoculate in a "clean room" or by working quickly. You can't. Airborne contaminants are invisible and everywhere. A £25 DIY still air box reduces contamination rates by 80–90%. Build this before you buy anything else.

4. Using cheap spray bottles

Cheap spray bottles produce large droplets that soak your substrate, creating wet spots where bacteria and cobweb mould thrive. A quality fine-mist sprayer (£5–£8) produces a fog-like mist that raises humidity without soaking. Spend the extra £3 on a proper mister.

5. Choosing latex gloves over nitrile

Latex gloves are more porous than nitrile and can cause allergic reactions with repeated use. Nitrile gloves are the standard in laboratories for good reason — they're more durable, more resistant to tears, and don't trigger latex allergies. Always buy nitrile, never latex.

6. Over-buying before their first grow

New growers often buy flow hoods, impulse sealers, and professional-grade equipment before completing a single successful grow. Most of this sits unused. Start with the budget list, prove your technique works, then upgrade strategically.

7. Ignoring secondhand options

Pressure cookers, storage containers, and spray bottles work identically whether new or used. Facebook Marketplace, Gumtree, and charity shops often have perfectly good stove-top pressure cookers for £20–£40. Check secondhand first — save money for cultures and consumables.


Frequently Asked Questions

Do I need all this equipment to start?

No. The budget starter list gets you growing oyster mushrooms for under £80 — and that includes the SAB. If you already have a large pot, it's even less. Start simple, upgrade as you learn.

What's the single most important piece of equipment?

The still air box. It costs under £25 to build and dramatically reduces contamination. Every other piece of expensive equipment is wasted if you contaminate during inoculation because you didn't have a clean workspace.

Can I use an Instant Pot to sterilise mushroom substrate?

For sterilisation, a stove-top pressure cooker at 15 PSI is significantly more reliable. Most electric models (Instant Pot, Ninja) max out at 11–12 PSI, which reaches only ~116°C instead of the 121°C needed to kill heat-resistant bacterial spores. Some growers report success with extended cycle times (120+ minutes) in electric cookers, but contamination rates are higher. If you're buying new equipment specifically for mushroom growing, get a stove-top model. If you already own an Instant Pot, try it with extended times — but be prepared for higher failure rates.

How much does it cost to start growing mushrooms in the UK?

From about £55 for a basic straw-bucket oyster mushroom setup to £250+ for a full intermediate rig with pressure cooker. The biggest cost is the pressure cooker — if you can borrow or find one secondhand, the rest of the equipment is surprisingly cheap.

Where can I get liquid culture?

We sell ready-to-use liquid culture syringes for multiple species including Cordyceps, Blue Oyster, and Phoenix Oyster. Each syringe contains enough culture for several jars or bags.

What size pressure cooker do I need for mushroom growing?

A minimum of 20 litres (roughly 23 quarts). This size fits 7–10 mason jars per run, making efficient use of the 90-minute sterilisation cycle. Smaller cookers work but require more batches. If you're serious about the hobby, consider 30L+ models like the Buffalo QCP435 for larger runs.

Can I grow mushrooms without a pressure cooker?

Yes — oyster mushrooms grow well on pasteurised straw, which only requires a large pot and hot water (65–80°C for 1–2 hours). The bucket method is perfect for beginners and costs under £80 total. However, species like Lion's Mane and Cordyceps require sterilised substrate, which needs a pressure cooker.

Is a laminar flow hood worth it for hobby growers?

For most hobbyists, no. A £25 DIY still air box achieves similar contamination rates when used correctly. Flow hoods (£150–£400+) make sense if you're doing agar work daily, running a small business, or simply want the convenience of hands-free operation. Start with an SAB — upgrade to a flow hood only if contamination becomes a persistent problem despite good technique.

What is the cheapest way to start growing mushrooms UK?

The straw bucket method for oyster mushrooms. Total cost: £55–£80 including a DIY still air box. You need: a 20L bucket (£3–5), wheat straw (£5–10), a large pot for pasteurisation, basic sterile supplies, and a liquid culture syringe. No pressure cooker required. See our budget starter list for the complete shopping list.


Not Sure Where to Start?

Building your first mushroom growing setup can feel overwhelming. Follow this simple path:

1. Build Your Still Air Box

The foundation of clean work. Under £25 and prevents most contamination. Read the Still Air Box Guide →

2. Choose Your First Species

Start with oysters — they're forgiving and fast. Move to Cordyceps or Lion's Mane once you've had a few successful grows. Browse Species Guides →

3. Get Your Liquid Culture

Skip the complexity of agar and spores. Our ready-to-use liquid cultures let you inoculate straight away. Shop Liquid Cultures →

4. Follow a Step-by-Step Guide

Each species has its own requirements. Our cultivation guides walk you through every step. Blue Oyster Guide → | Cordyceps Guide →



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