Contact

Fermentcalc does not run a support desk and there is no account system to lose access to. The most useful things you can tell us are:

• A salt %, brine % or timing figure that contradicts an authoritative source (with the source).
• A vegetable you ferment regularly that is not yet in the reference.
• A calculator bug — wrong unit, off-by-decimal, accessibility issue.
• A broken or stale external link.

Reach us

Email: hello@fermentcalc.com
Operator: Paulo de Vries, writing from the Netherlands. Responses are usually within a few days, often faster for factual corrections.

If you are asking about press or affiliate partnerships: we do not accept affiliate arrangements, sponsored reviews, or product placements. Fermentcalc is ad-supported via display ads only.