🌱 Growing Quick Start Guide

Learn to cultivate psilocybin mushrooms at home

Choose Your Method

Two primary cultivation methods for beginners: PF Tek (simple, small-scale) and Monotub (larger yields, more complex). Both are reliable when done correctly.

🍄 PF Tek Method

Best for: Complete beginners, small spaces, first-time growers

Timeline: 4-6 weeks from inoculation to harvest

Yield: 20-60g dried per batch

Difficulty: Easy

⚠️ Legal Notice

Growing psilocybin mushrooms is illegal in most jurisdictions. This information is for educational purposes only. Know your local laws and take personal responsibility.

Required Supplies

Substrate Materials

  • Brown rice flour (organic)
  • Vermiculite (medium grade)
  • Water (distilled preferred)

Equipment

  • 12x half-pint mason jars with lids
  • Large cooking pot with lid
  • Measuring cup
  • Mixing bowl
  • Hammer and nail (for lid holes)
  • Aluminum foil

Sterile Technique

  • Isopropyl alcohol (70%)
  • Latex/nitrile gloves
  • Still air box or glove box
  • Lighter for flame sterilization
  • Paper towels

Fruiting Chamber

  • Clear plastic tub (50-60L)
  • Perlite (4-5 quarts)
  • Drill with 1/4" bit
  • Spray bottle (misting)

Spores

  • 10ml spore syringe
  • Psilocybe cubensis (recommended for beginners)

Step-by-Step Process

Day 0 - Preparation (2 hours)

1. Prepare Substrate

Recipe per jar:

  • 2/3 cup vermiculite
  • 1/4 cup water
  • 1/4 cup brown rice flour
  1. Mix vermiculite and water in bowl until evenly moist
  2. Add brown rice flour and mix thoroughly
  3. Fill jars to 1/2 inch from top
  4. Wipe jars clean with damp paper towel
  5. Top with dry vermiculite layer (helps prevent contamination)
  6. Cover with aluminum foil (tight seal)
Day 0 - Sterilization (2 hours)

2. Sterilize Jars

  1. Place jars in large pot on rack or cloth
  2. Add water to pot (halfway up jars)
  3. Bring to gentle boil
  4. Steam for 90 minutes (maintain water level)
  5. Turn off heat, let jars cool overnight in pot
💡 Tip: Don't rush cooling. Opening pot too early can introduce contaminants. Wait at least 5 hours or overnight.
Day 1 - Inoculation (1 hour)

3. Inoculate Jars

Critical: This step requires maximum sterility!

  1. Set up still air box or clean work area
  2. Sanitize everything with 70% isopropyl alcohol
  3. Wear gloves, sanitize hands and gloves
  4. Remove foil from jar
  5. Flame sterilize needle until red hot, let cool 5 seconds
  6. Insert needle through hole at angle
  7. Inject 0.25ml spore solution (scrape against glass)
  8. Repeat for 4 holes per jar (1ml total per jar)
  9. Re-cover with foil
  10. Label jars with date and strain
⚠️ Warning: Contamination usually happens during inoculation. Take your time, work clean, and don't skip sterilization steps.
Days 1-21 - Colonization (3 weeks)

4. Incubation Period

  • Store jars in dark, warm place (75-80°F / 24-27°C)
  • Check jars every few days for growth
  • White fuzzy mycelium should appear within 3-7 days
  • Full colonization takes 2-4 weeks
  • Wait 7 extra days after full colonization (consolidation)

What to watch for:

  • ✅ White, fluffy mycelium = Good
  • ✅ Bluing on mycelium = Normal (psilocin oxidation)
  • ❌ Green, black, pink, orange = Contamination (discard jar)
  • ❌ Foul smell = Contamination (discard jar)
Day 21 - Chamber Setup (1 hour)

5. Build Fruiting Chamber

  1. Drill 1/4" holes in tub (2" spacing, all sides and top)
  2. Rinse perlite until water runs clear
  3. Layer 4-5 inches perlite in bottom of tub
  4. Add water until perlite surface is wet but not submerged
  5. Place aluminum foil squares on perlite (for cakes)
Day 21 - Birthing (30 min)

6. Birth Cakes

  1. Sanitize work area
  2. Remove jar lid
  3. Turn jar upside down, tap gently
  4. Cake should slide out (if stuck, run under water)
  5. Gently rinse cake under water to remove loose vermiculite
  6. Place cakes on foil in fruiting chamber (2-3" apart)
Days 21-35 - Fruiting (1-2 weeks)

7. Maintain Chamber

Daily maintenance:

  • Mist walls and lid 4-6 times per day
  • Fan with lid 4-6 times per day (30 seconds each)
  • Keep in indirect sunlight or use 12/12 light cycle
  • Maintain 90-95% humidity
  • Temperature: 70-75°F (21-24°C)

What to expect:

  • Pins (tiny mushrooms) appear in 5-14 days
  • Mushrooms double in size daily
  • Ready to harvest in 5-12 days from pinning
Day 28-35 - Harvest

8. Harvesting

When to harvest: Just before or as veil breaks (thin membrane between cap and stem)

  1. Wash hands, wear gloves
  2. Twist and pull mushroom gently at base
  3. Harvest entire cluster at once
  4. Remove any leftover stumps (can rot and contaminate)
  5. Continue misting and fanning for additional flushes

Expected yields:

  • First flush: Largest (10-30g dried per 12 jars)
  • Second flush: Moderate (5-15g dried)
  • Third+ flush: Smaller, declining yields
Post-Harvest

9. Drying & Storage

Drying (critical for preservation):

  1. Place mushrooms on paper towel or drying rack
  2. Use fan for air circulation
  3. Add desiccant (Drierite) or use dehydrator (95-105°F)
  4. Dry until "cracker dry" (snap easily)
  5. Should take 24-48 hours

Storage:

  • Store in airtight container with desiccant packs
  • Keep in cool, dark place
  • Properly dried mushrooms last 1-2 years
  • Label with date and strain

💡 Common Mistakes to Avoid

  • Breaking sterile technique during inoculation
  • Not waiting long enough for full colonization
  • Over-misting (water pooling on cakes)
  • Insufficient fresh air exchange
  • Harvesting too early or too late
  • Not drying completely (leads to rot)

📦 Monotub Method

Best for: Intermediate growers, larger yields, less maintenance

Timeline: 5-8 weeks from inoculation to harvest

Yield: 100-500g dried per tub

Difficulty: Moderate

Required Supplies

Substrate Materials

  • Coco coir (650g brick)
  • Vermiculite (1 quart)
  • Gypsum (1 cup, optional)
  • Colonized grain spawn (3-5 lbs)

Container

  • 66-quart monotub with lid
  • Drill with 2" hole saw
  • Polyfill or micropore tape

Sterilization

  • Large bucket with lid
  • Boiling water
  • Isopropyl alcohol 70%
  • Nitrile gloves

Grain Spawn

  • Pre-colonized grain spawn OR
  • Jars + grain + pressure cooker
💡 Tip: For first-time monotub growers, buy pre-colonized grain spawn online. Learning grain preparation adds significant complexity.

Step-by-Step Process

Day 0 - Tub Preparation (1 hour)

1. Prepare Monotub

  1. Drill 2" holes on all four sides (6" from bottom)
  2. Drill 2 holes on each short side, 3 on long sides
  3. Stuff holes with polyfill or cover with micropore tape
  4. Clean tub thoroughly with soap and water
  5. Wipe down with isopropyl alcohol
Day 0 - Substrate Prep (2 hours)

2. Prepare Bulk Substrate

Recipe for 66-quart tub:

  • 650g coco coir brick
  • 2 quarts vermiculite
  • 1 cup gypsum (optional)
  • 4 quarts boiling water
  1. Break coco coir into bucket
  2. Add vermiculite and gypsum
  3. Pour boiling water over mixture
  4. Mix thoroughly with clean utensil
  5. Close bucket lid and let pasteurize for 1-2 hours
  6. Let cool to room temperature (6-8 hours or overnight)
Day 1 - Spawn to Bulk (30 min)

3. Mix Spawn with Substrate

Spawn-to-substrate ratio: 1:2 (1 part spawn to 2 parts substrate)

  1. Sanitize work area, wear gloves
  2. Check substrate moisture (should hold shape when squeezed, minimal dripping)
  3. Add layer of substrate to tub (2-3 inches)
  4. Crumble and spread grain spawn evenly
  5. Add remaining substrate on top
  6. Gently pack down (don't compress too much)
  7. Smooth top surface
  8. Close lid, don't open for 10-14 days
⚠️ Critical: Work quickly to minimize contamination risk. Have everything ready before opening spawn jars.
Days 1-14 - Colonization (2 weeks)

4. Colonization Phase

  • Keep in dark, warm place (75-80°F / 24-27°C)
  • Do NOT open lid during this period
  • Mycelium will spread across substrate
  • White, rhizomorphic growth is ideal
  • After 50-75% colonization, introduce fruiting conditions
Days 14-30 - Fruiting (2-3 weeks)

5. Fruiting Conditions

When to start: Surface is 50-75% white with mycelium

  • Move to fruiting location (indirect light)
  • Keep lid closed (monotub is self-regulating)
  • Check once daily for moisture on walls
  • Mist if no condensation visible (mist walls, not substrate)
  • Fan 2-3 times daily if needed (lift lid, fan 30 seconds)
  • Maintain 70-75°F (21-24°C)

Pinset formation: 7-14 days after introducing fruiting

Day 25-35 - Harvest

6. Harvesting

Same process as PF Tek:

  • Harvest before veil breaks
  • Twist and pull at base
  • Harvest entire cluster
  • Remove stumps to prevent rot
  • Continue fruiting for 2-4+ flushes

Expected yields per flush:

  • Flush 1: 100-200g dried
  • Flush 2: 75-150g dried
  • Flush 3-4: 50-100g dried each

💡 Monotub Advantages

  • Larger yields per effort
  • Self-regulating humidity (less maintenance)
  • More forgiving than PF Tek
  • Multiple large flushes
  • Scalable to larger containers

📚 Related Resources

🍄 Choose a Species 🔬 Contamination Guide 🛠️ Equipment List ⚠️ Troubleshooting