Our own free toolkit for koji-making: calculators and simulators for the physics, thermodynamics, and food-safety math behind every ferment — a salt calculator grounded in real safety floors, an incubator simulator, a haze pattern navigator, and more. No account needed for the core tools.

Yes — built and owned by BU NE YEMEK, running under our koji expertise and IP. It's a separate site (kojiology.co) but the same brand behind it.

The core calculators and simulators are free. An "Ask" chat assistant fed by BNY's koji knowledge is available on a free tier that requires sign-in.

Home fermenters and restaurant kitchens alike — anyone who wants to stop guessing their parameters or incubation setup and work from real numbers instead.