Small-Batch Vegetable Fermentation
You do not need a cellar or specialized equipment to start fermenting. A clean glass jar and a consistent ratio of salt to water are all that separate fresh produce from a shelf-stable, living preserve.
Salt is the only preservative you need
Use non-iodized salt, such as sea salt or kosher salt. Iodine can inhibit the fermentation process and may lead to softened vegetables.
- Wide-mouth glass mason jar
- Digital kitchen scale
- Glass fermentation weight or a small glass ramekin
- Cloth cover and rubber band
What goes in.
- 500gHard vegetables, such as carrots, cauliflower, or green beans
- 500mlFiltered or distilled water
- 15gFine sea salt (3% brine ratio)
- 2 clovesGarlic, smashed
- 1 tspMustard seeds or black peppercorns
Keep the oxygen out
Anything floating above the brine line is prone to mold; ensure your vegetables are fully submerged beneath the surface at all times during the fermentation cycle.
The method.
Prepare the brine
Dissolve the 15g of salt into the 500ml of water. Stir until the water is completely clear.
Pack the jar
Place your aromatics at the bottom. Pack the vegetables tightly into the jar, leaving at least two inches of headspace at the top.
Submerge
Pour the brine over the vegetables until they are covered by at least an inch of liquid. Place your weight on top to keep them down.
Cover and wait
Secure a cloth over the jar opening with a rubber band to allow gases to escape while keeping dust out. Store in a cool, dark place away from direct sunlight.
Monitor
After 7 days, taste a small piece. When the texture is firm and the flavor is sufficiently tangy, replace the cloth with a solid lid and move to the refrigerator to halt active fermentation.
When it doesn't go to plan.
If you see white sediment at the bottom of the jar, this is spent bacteria; it is normal and safe.
Always start with the freshest vegetables; wilted produce will result in a soft final product.
If the brine becomes cloudy, do not panic; this is a sign that the fermentation is active and working.
The ones that keep coming up.
How do I know if the batch has gone bad?
If you see fuzzy, colorful mold on the surface or smell anything putrid or rotting, discard the batch immediately. A clean, active ferment smells clean and sour, not rotten.
Can I use tap water?
Most city tap water contains chlorine, which can hinder the bacteria. If you must use it, boil it first and let it cool completely to room temperature.
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