a friendly companion for sourdough, kombucha, kimchi and everything else worth waiting for.
One place for all your ferments. No more sticky notes and phone alarms.
Smart scheduling shows what needs attention and when. Never miss a fold or a feed.
Rate, reflect, and improve with every batch. Turn guesswork into craft.
Not another recipe app. Fermentr is a companion that understands fermentation is alive, messy, and needs timing.
A Gantt-style timeline shows all your active ferments on one screen. See what's proofing, what's fermenting, and what needs your hands next.
Making a double batch? Half batch? Tap a preset or enter a custom multiplier — every ingredient updates in real time.
Set a focus goal before you start, rate the result when you're done, and reflect on what worked. Your baking journal builds itself.
Focus Goal
Better ear development on scoring
Bread proofing, kombucha brewing, and kimchi fermenting — all on one dashboard. Know exactly what needs attention and when.
Good morning
3 ferments activeSourdough
Fold in 20min
Kombucha
Day 4 of 7
Kimchi
Day 2 of 5
Hot Sauce
Planned
Recent
Completed 2 days ago
Fermentr automatically calculates hydration from your ingredients — no manual math. See at a glance whether you're in the standard, medium, or high-hydration zone. Drag the slider to explore what-if scenarios and remix your recipe at a new hydration level.
This is the real component — try it!
Create your own or start with one of ours. Add ingredients, steps, and timing.
Set your scale, pick a focus goal, and hit go. Your timeline builds itself.
Check off steps, rate the result, reflect on what worked. Get better every batch.
Connect Fermentr to Claude and ask it to check what needs feeding, log an observation, or remix a recipe. It reads and writes your real data, with your permission.
https://fermentr.org/api/mcpYou review and approve access before Claude connects — and can revoke it anytime in Settings.
Join home fermenters who track their brews, bakes, and batches in one place.
Get started — it's free