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Notify me at launch
Coming soon · iOS & Android

Home fermentation, made simple.

Salt ratios tuned to your jar and vegetable, day-by-day timing, and a photo diagnostic if something looks off. Everything you need to nail your ferments at home.

Notify me at launch
Why Fermento

Made for your first jar.

  • The right salt ratio.

    Calculated for your vegetable and jar size. No more spreadsheets.

  • The right timing.

    Know when to taste, when to refrigerate, when it's done.

  • Something off with your jar?

    Find the jar that looks like yours. Know what to do next.

How it works

Three steps to a finished ferment.

  1. New fermentation form with ingredient, salt ratio, and ambient temperature.
    01

    Pick your jar.

    Choose a vegetable and your jar size — Fermento gives you the exact amount of salt.

  2. Calendar view showing the fermentation timeline across the month.
    02

    Follow the timing.

    Day-by-day prompts tell you when to taste, when to refrigerate, when to wait.

  3. Diagnostic screen with a grid of reference jar photos — tap the one that looks closest to yours.
    03

    In doubt? Compare.

    Find the jar that looks like yours and follow what to do next.

Privacy

Local-only. Your data lives on your phone, not our servers.

No accounts, no analytics inside the app, no data leaves your device. The website uses cookieless analytics and asks for your email only if you want to be notified at launch.

  • No account required.
  • No analytics or tracking inside the app.
  • Cookieless analytics on the website.
  • We only email you if you opt in.
Stay in the loop

Be the first to ferment with us.

One email when Fermento launches on iOS and Android. Nothing else.