Every jar, tracked — not just the recipe

Your kombucha's ready to bottle. Your starter needs a feed. Your kraut has three more days.

FermentAdvisor keeps a live list of everything you've got going and tells you the next thing each one needs, when it needs it — so nothing sits forgotten on the counter past the point it’s good.

Get the app Available now on the App Store and Google Play.

Plan. Check in. Log.

FermentAdvisor isn’t a recipe box — it’s a live tracker for the ferments you actually have going right now, each on its own clock.

Start a jar

Plan a ferment

Pick what you're making, and FermentAdvisor builds the schedule — every check-in, feed, and safety window for that specific ferment, sourced from tested references, not guessed.

A reminder schedule tuned to that ferment — hours for yogurt, weeks for miso
Safety windows called out plainly, never buried in a paragraph
Recipe and ratios included, so you're not hunting a second source

Mid-ferment

Check in

When it's time, FermentAdvisor tells you what to look for and lets you confirm from a photo — including the one distinction that actually matters on a lot of these: healthy culture versus something to toss.

Kahm yeast vs. mold, called from a photo when it counts
Re-prompts until you confirm — nothing silently falls off your radar
Safety-classed checks are always free, no exceptions

Done

Log a ferment

Close it out and see how it compares to your last batch of the same thing — what changed, what you'd do differently, and whether it's time to restart a culture for the next round.

Every finished batch saved to your library
Perpetual cultures (starter, SCOBY, grains, mother) tracked as their own living thing, not a one-off

One app, every ferment on your counter

Vegetable ferments, dairy, cultured beverages, vinegar, bean & grain, and the living cultures that feed them all — each with its own tested schedule.

Vegetable ferments

Kraut, kimchi & pickles

Sauerkraut · Kimchi · Pickles · Hot sauce

Dairy ferments

Yogurt & kefir

Yogurt (plain & Greek) · Milk kefir

Cultured beverages

Kombucha & more

Kombucha · Water kefir · Tepache · Tejuino

Vinegar

Make your own

Fruit scrap · Red wine · Rice · Malt · Honey

Bean & grain

Miso

White · Yellow · Red · Barley

Living cultures

The ones you keep alive

Sourdough starter · Kombucha SCOBY · Water & milk kefir grains · Vinegar mother

Pricing

Try the full loop free. Safety-classed checks never cost you anything, on any tier.

Free

8 uses, lifetime

Start a jar, run a check, or log a finish — each draws from one 8-use pool
Watch a short ad any time for one more use
Safety-classed checks (mold vs. kahm, etc.) are always free
Full recipe and schedule content, every ferment

Pro

$39.99/year

or $4.99/month

Unlimited jars, checks, and logs
No ads
Your full ferment library and history, always on hand

Already using Claude, ChatGPT, or Grok?

Connect your FermentAdvisor account to Claude, ChatGPT, or Grok and you can plan a ferment, check in on a jar from a photo, or log the finished result without leaving the chat. Use your agent to update your account and navigate the app — it knows where everything is. It’s the same account and the same jars as the app, so anything you do in one shows up in the other.

How it works in Claude → How it works in ChatGPT → How it works in Grok →