Yes, you can ferment mixed vegetables together. Combining vegetables like cabbage, carrots, and radishes in a single jar is a common and delicious way to create diverse and flavorful ferments.
Fermenting mixed vegetables is a straightforward process, but there are a few key considerations to ensure success. Here's a step-by-step guide:
Prepare the Vegetables: Wash all vegetables thoroughly. Chop or slice them into uniform sizes to ensure even fermentation. For example, shred cabbage, julienne carrots, and slice radishes.
Brine Preparation: Create a brine solution using non-iodized salt and water. A common ratio is 2-3% salt concentration (e.g., 20-30 grams of salt per liter of water). Dissolve the salt completely in the water.
Pack the Jar: Pack the vegetables tightly into a clean, sterilized jar, leaving about 1-2 inches of headspace at the top. You can add spices like garlic, ginger, peppercorns, or herbs for added flavor.
Submerge the Vegetables: Pour the brine over the vegetables, ensuring they are completely submerged. Use a fermentation weight (glass weight, ceramic weight, or even a clean ziplock bag filled with brine) to keep the vegetables below the brine level. This prevents mold growth.
Fermentation: Cover the jar loosely with a lid or fermentation airlock. This allows gases to escape while preventing unwanted bacteria from entering. Place the jar in a cool, dark place (around 65-72°F or 18-22°C) for fermentation.
Monitor and Taste: Fermentation time varies depending on temperature and desired sourness, typically ranging from 1 to 4 weeks. Check the ferment regularly for mold or unusual smells. Taste the vegetables after a week and continue fermenting until they reach your desired level of sourness.
Storage: Once fermented to your liking, transfer the jar to the refrigerator. This slows down the fermentation process significantly.
When fermenting mixed vegetables, consider the water content of each vegetable. Vegetables with high water content, like cucumbers, can dilute the brine. You may need to adjust the salt concentration or fermentation time accordingly to prevent spoilage.