Fermented Beans & Veggies
Published: July 4, 2026

Image info
Ingredients
Main
2.5 cups Cooked Beans , skins split; kidney, great northern, turtle, navy, red chili, or chickpeas all work
1 cups Raw Chopped Vegetables , carrots, bell peppers, leeks, onions, zucchini, or cabbage — one or a combination
Brine
1 cups Liquid Starter Culture , kombucha or fermented vegetable brine
0.75 cups Water , or additional liquid starter culture
0.5 tsp Salt , without anti-caking agents
Directions
- Cook the beans until the skins have split and they are quite tender, but not mush. If the skins didn't split during cooking, gently break them open with your hands or a fork without mashing them — the probiotics need access to the inner starch to ferment successfully.
- Chop the vegetables and add them to a large bowl. Add the cooled beans to the bowl and mix everything together gently, without mashing the beans.
- Wash a quart jar and a glass fermenting weight in hot, soapy water. Sterilization isn't required.
- Fill the jar with the bean and vegetable mixture, making sure the beans have cooled to room temperature first. While holding the jar with one hand, bump its bottom with the other to settle the mixture until there is about 3 inches of headspace.
- Set the glass fermenting weight on top of the mixture in the jar.
- In a pourable measuring cup, stir the salt into the liquid starter culture until dissolved, then add the water.
- Pour the liquid starter culture into the jar until the mixture and the fermenting weight are fully submerged.
- Set a lid loosely on the jar (loose enough for fermentation gases to escape) and leave on the counter at room temperature, out of direct sunlight, for 4 to 5 days.
- Starting on day 4, taste the beans and vegetables. If you'd like more tang, or the pH hasn't dropped below 4.5 yet, leave it another day on the counter before refrigerating.
- If kahm yeast has formed on the surface, don't worry — it's harmless. Remove the fermenting weight (which will pull out most of it), then dab off any remaining flakes with a paper towel and wipe the inside of the jar.
- Remove and set aside the fermenting weight — don't return it to the jar. Seal the jar with a tight lid and refrigerate. Properly fermented beans and veggies keep about 2 months in the fridge.
- Smell the mixture starting on day 3: a healthy ferment has a light, soury-sweet smell. A foul or stinky odor means bad bacteria have taken over — throw it away.
- By day 3–4, the pH should drop below 4.5. Check with pH strips or a digital meter if you have one.
- Reuse the fermenting weight for future batches once you've cleaned it.