INSIDE THE NOTEBOOK
Craft, with
the working shown.
Useful explanations need a clear basis. We distinguish what comes from a source, what follows from a calculation, and what has actually been observed.
Follow the source
Technical explanations link to their references beside the relevant claims. Practitioner guidance is attributed and kept within its stated conditions.
Check the arithmetic
The hydration tool uses a shared calculation for both its inline and standalone views. Its input bounds are software limits, not recipe recommendations.
Let testing mean testing
Nothing on this site has been cook-tested yet. The tonkotsu recipe says so on its page: its times come from its source, its pressure time is calculated, and its soup yield stays unmeasured until we cook it. Tests we plan are listed with no results until someone has really cooked them. A successful calculation does not establish how a noodle will taste or handle.
Be clear about the drawings
The landscapes, timer paintings, team portraits and brand explorations were generated with AI under human direction. They are invented scenes, not photographs of real places or cooking tests, and not human-authored Shodō.