Fruiting Chamber Calculator

Size your batch setup from target yield

Master's mix supplemented block weight

Select species to grow (incompatible temps use separate chambers)

Blue Oyster
Pleurotus ostreatus var. columbinus
Incubation: 12-14 days @ 21-24°C (70-75°F) Fruiting: 10-14°C (50-57°F) Pinning: 3-5 days from cutting Harvest: 5-7 days from pins
Lion's Mane
Hericium erinaceus
Incubation: 14-21 days @ 21-24°C (70-75°F) Fruiting: 15-18°C (59-65°F) Pinning: 5-7 days from cutting Harvest: 7-10 days from pins
Chestnut
Pholiota adiposa
Incubation: 14-21 days @ 21-24°C (70-75°F) Fruiting: 15-18°C (59-65°F) Pinning: 7-10 days from cutting Harvest: 5-7 days from pins
Pioppino
Cyclocybe aegerita
Incubation: 21-28 days @ 21-24°C (70-75°F) Fruiting: 15-18°C (59-65°F) Pinning: 10-14 days from cutting Harvest: 7-10 days from pins
Shiitake
Lentinula edodes
Incubation: 60-90 days @ 21-24°C (70-75°F) Fruiting: 10-16°C (50-60°F) Pinning: 7-14 days from cold shock Harvest: 5-8 days from pins
King Oyster
Pleurotus eryngii
Incubation: 14-21 days @ 21-24°C (70-75°F) Fruiting: 12-16°C (54-60°F) Pinning: 5-7 days from cutting Harvest: 7-10 days from pins

Target fresh mushroom yield (averaged across 4-week cycle)

10 kg/week avg
70% BE

Chamber Layout

Drag to rotate
4' × 4' × 6.5' (1.2m × 1.2m × 2.0m)
Tent
Shelving
Blocks
Fruiting
First batch enters fruiting chamber (no pins yet)

BATCH SETUP

3 kg/week avg
~4 kg weeks 1-3, week 4 cleaning
Batch Cycle

3 weeks production, 1 week cleaning/restart. Full clean between batches reduces contamination risk.

Blocks per Batch
19
all in, all out
Chamber Size
16 ft³
2' × 2' × 4' tent
FAE Required
1.3 CFM
80mm fan on low
Fogger Size
1-disc
~7% duty cycle

Full Spec Sheet

Target (avg) 10 kg/week
Species 1
Production weeks ~13 kg/wk for 3 weeks
Block size 5 lb (2.3 kg)
Biological efficiency 70%
Yield per block 0.64 kg
Blocks per batch 62
Chamber 4' × 4' × 6.5'
Capacity (per chamber) 72 blocks (86% used)
Shelving (per chamber) 1× rack, 4 levels
FAE target (per chamber) 8 exch/hr → 17 CFM
Fan (w/ ducting) 4" inline (~108 CFM rated)
Humidity controller 85% RH (Inkbird IHC-200)
Fogger House of Hydro 1-disc
Duty Cycle ~7%
Disc Life 4-6 years
Temperature 18-21°C