Coir · Vermiculite · Gypsum
Best for: cubensis & dung-lovers
Verm = 20% of coir weight. Gypsum = 3%. Water = 4.5x coir weight. All optional additives are % of coir weight.
Add to your coir
Water
Total hydrated weight
Hardwood sawdust + supplements
Best for: shiitake, lion's mane, oysters · Target: 60% moisture
What you weigh out first
Target field capacity
% of total dry mix
% of total dry mix
Auto-calculated
Bran + Soy exceeds 100% - reduce percentages.
Percentages are of the total dry block weight. HW fills the remainder (e.g. 10% bran + 5% soy = 85% HW). Classic shiitake: 85/10/5. Lion's mane: 80/20/0. Oysters: 90/10/0 or unsupplemented.
Dry Ingredients
Water
Total hydrated weight
50/50 Hardwood + Soy Hulls
Best for: oysters, lion's mane, shiitake · Target: 60% moisture
Half the dry mix
Half the dry mix
Target field capacity
True Masters Mix is always 1:1 HW to soy hulls. Both fields default to 454g (~1 lb each) for a standard 2 lb dry block. Gypsum and kelp are % of total dry weight.