Free tools for home mycology
Run your grow like a lab, not a guess.
Calculators for substrate, agar, and sterilization, plus practical notes on clean technique. Built by a grower who wanted good tools to cost less.
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Calculators
Numbers you'd otherwise scribble on tape
CVG & monotub
Coir, vermiculite, gypsum, water, and spawn for your exact tub.
qt · g · cupsAgar plates
MEA, MYA, or PDA by plate count and dish size.
mL · gPressure cooker
Cycle time and pressure by load, adjusted for altitude.
min · psiBiological efficiency
See how well a flush converted your substrate.
BE %Grow Notes
Short guides, tested at the flow hood
Technique
Punch vs. scalpel: cleaner agar transfers
Same-size plugs, fewer drops, and less time with the plate open.
SubstrateMixing CVG that hits field capacity every time
The base recipe, bucket pasteurization, and the squeeze test.
ToolsWhy your tweezers won't heat in an induction sterilizer
Magnetic steel, a fridge-magnet test, and a cleaner workflow.
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