The exact brine for the jar in your hand.

Cucumbers don't want the same salt as cabbage. Krunch gives every vegetable its own salt, vinegar and herbs, whether you're fermenting or pickling, in grams and spoons you can actually pour.

Coming soon on the App Store

Free. No account, no ads, no tracking.

Three taps, one jar

From "what am I making" to a jar that tells you when it's ready.

Krunch screen: choosing a vegetable from a grid, with classics like kimchi and sauerkraut on top

Pick a vegetable

20 kinds, or one of four classics on a single tap: kimchi, sauerkraut, quick-fermented cucumbers, sweet-and-sour peppers.

Krunch screen: kimchi brine for 1 kg of vegetables, 25 g of salt and the paste ingredients

Get the exact brine

Salt to the gram, vinegar by kind, herbs in spoons. Scaled to your vegetables or your jar, with the day it will be ready.

Krunch journal: a kimchi jar with a progress bar, star rating and tags like too salty

Save the jar

Rate it, tag what to change, and get a reminder on the day it's ready. The next batch starts from what you learned.

Why it belongs on your phone

A journal for every jar

Rate it, tag "too salty" or "not salty enough", and the tip is waiting for you next time.

A reminder on the right day

Not "in about a week". On the day the jar is actually ready, adjusted for how warm your kitchen is.

Mix vegetables in one jar

Carrots with cauliflower, cucumbers with garlic. The brine adjusts to the blend.

Mould, or just kahm?

A white film on the brine doesn't have to end the batch. A short guide tells harmless kahm yeast from the stuff you throw out.

Ratios with a source

Salt and vinegar follow Sandor Katz, the Noma guide and USDA canning guidance, not a hunch.

Four languages

Czech, English, Italian and German.

Coming soon on the App Store

iPhone and iPad.