Skip to main content
Botanical WatersThe science of water-extraction.

Grow / Supplies

Home-grow supplies catalog

28 vetted supplies across 7 categories and 3 tiers — from beginner-friendly kits and spray bottles to advanced HEPA flow hoods and milligram precision scales. Affiliate-linked to suppliers Joe trusts. Same price as buying direct.

Showing 4 of 32 supplies.

IntermediateSterile-workflow toolsAffiliate

Pressure Cooker (10-quart, 15 PSI)

The single most important piece of equipment in cultivation.

A 10-quart pressure cooker capable of holding 15 PSI is the bare minimum for sterilizing grain spawn and culture media. 15 PSI = 250°F internal temperature, the threshold required to kill bacterial endospores. Stovetop is fine; electric pressure cookers (Instant Pot Max, etc.) work if rated to 15 PSI — most aren't, so verify.

Use: Stage 2 of intermediate course onward; daily-driver for advanced

Capacity
10 quart (fits ~7 qt-jars)
Pressure
15 PSI rated
Temperature at 15 PSI
250°F / 121°C

$150

Buy →
IntermediateSterile-workflow toolsAffiliate

Still-Air Box (clear tote, 18-gallon)

DIY sterile workspace. Sub-$30 setup.

A clear plastic storage tote, 18-gallon, with two arm-holes cut on the side. Inverted on a clean surface, surface-sterilized with 70% iso, it provides a still-air sterile field where airborne contaminants settle out before they can land on your work. This is the budget alternative to a flow hood for the intermediate tier.

Use: Stage 3 of intermediate course onward

Capacity
18 gallons
Setup
Cut 4-inch arm-holes on long side, invert

$28

Buy →
IntermediateSterile-workflow toolsAffiliate

70% Isopropyl Alcohol (32 oz spray)

Surface sterilizer. 70% is correct — 91% is not.

70% isopropyl is the correct concentration for surface sterilization (more water = better protein denaturation contact time). 91% evaporates too fast to fully sterilize. Used for SAB walls, gloves, syringe ports, work surfaces.

Use: Every sterile workflow stage

Concentration
70%
Volume
32 oz

$8

Buy →
IntermediateSterile-workflow toolsAffiliate

Sterile Syringe Needles (16ga, 10-pack)

Stainless steel needles for spawn jar inoculation.

16-gauge stainless needles to fit standard liquid culture and spore syringes. Flame-sterilize between jars. Sealed individually for sterility on first use.

Use: Inoculating grain spawn

Gauge
16ga (1.5 inch)
Quantity
10 needles

$14

Buy →

Affiliate disclosure: External "Buy" links are affiliate-tagged. Joe earns a small commission on purchases through these links; you pay the same price you'd pay direct. We only link suppliers that publish lab results and meet our quality bar. Full details: /mushrooms/legal/affiliates