PF Tek
Beginneraka Brown Rice Flour Cakeaka BRFThe first widely-published home cultivation method (Robert McPherson, 1991). Small grain cakes in half-pint jars — no flow hood needed, minimal contamination risk.
Best for: First-time growers · cubensis-family species · small batches
Equipment
- · Pressure cooker (90 min @ 15 PSI)
- · Half-pint canning jars (6–12)
- · Drill + 1/8" bit for inoculation holes
- · Aluminium foil
- · Spore syringe or LC
- · Perlite + plastic tote (for SGFC fruiting later)
Recipe
- · Per half-pint jar: ⅔ cup vermiculite
- · + ¼ cup brown rice flour
- · + ¼ cup water
- · Top with a thin dry-vermiculite layer (contamination buffer)
Steps
- Mix vermiculite + BRF dry, add water last, do not pack
- Fill jars to ½" from top, add dry-vermiculite cap
- Drill 4 inoculation holes in lid, cover with foil
- Pressure cook 60 min @ 15 PSI, cool overnight
- Inoculate ¼ cc into each hole, seal hole with micropore tape
- Colonize 4–6 weeks at 75–80°F (24–27°C), dark
- Once 100% white, birth cakes into perlite SGFC + fruit
Timeline
~6 weeks inoc → first flush
Yield
30–80 g dry per cake across 2–3 flushes
Pitfall
Packing the substrate. Mycelium needs air gaps to grow — fluffy, not dense.