Why It Works

Solid-state fermentation lives and dies on airflow. When cooked rice or soybeans clump together, the interior grains suffocate and the mold can’t reach them, leading to patchy, uneven growth.

In F-03, calcium sulfate dihydrate works strictly as a clump-breaker. It coats the surface of the wet grains or beans so they separate cleanly, opening up the channels of oxygen the culture needs to spread across every surface.

The small peptide fraction acts as an early booster shot — a hit of accessible nitrogen that accelerates sporulation and speeds up the mycelial knitting that binds the substrate into a firm, well-colonized cake.

Together they do exactly two things well: keep the grains open and get the culture moving fast.

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What’s Inside

Ingredient	Function
Calcium Sulfate Dihydrate	Clump-breaker — coats grains for clean separation and oxygen flow
Hydrolyzed Plant Peptides & Amino Acids	Early booster for rapid sporulation and mycelial knitting

 

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Best For

Application: Solid-state grain and legume fermentation.

Target cultures: Aspergillus oryzae (Koji) and Rhizopus oligosporus (Tempeh).

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How to Use

The Golden Ratio

Add F-03 at 1% to 2% of the total dry weight of your raw grains or beans, measured before soaking and steaming. This keeps the dose light and consistent regardless of how much water the batch takes on.

Quick Reference

For a standard kitchen batch of 500g of raw, dry polished rice or dry soybeans, add:

5 g to 10 g of Formula F-03.

Toss it through the cooked, cooled grains or beans so every surface is lightly coated before you introduce your spores or starter.

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Handling & Storage

Food-focused blend of inert gypsum and plant-derived peptides. Avoid inhaling fine dust when handling; keep the pouch sealed and dry between uses. As with any fermentation, work clean and follow safe food-handling practices from inoculation through incubation.