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Substrate

Coffee-Ground Oyster Substrate

A recycled coffee-based substrate commonly used for indoor oyster production. Works especially well with blue and pearl oyster strains.

Basic20 days

What ingredients does it use?

What ingredients does it use?MetricImperial
Used Coffee Grounds2000 g4.4 lbs
Chopped Straw1000 g2.2 lbs
Water2000 ml67.63 fl_oz
Gypsum20 g0.7 oz

Recipe details

Type
Substrate
Difficulty
Basic
Sterilization
Pasteurization · 45 min
Container
3L Poly Bags
Expected yield
2–4 kg oyster mushrooms
Cycle length
20 days

How do I prepare it?

Mix used coffee grounds with straw and hydrate to field capacity before bagging.

  1. Mix used coffee grounds and chopped straw thoroughly.
  2. Pasteurize mixture at 70°C for 45 minutes.
  3. Drain excess water and cool.
  4. Load into poly bags.
  5. Inoculate with oyster grain spawn at 15–20%.
  6. Incubate at 22–24°C until colonized.

Use this recipe in your batches

In MycoLab you copy this recipe to your organization, link it to your batches and compare the yield of each one.