Pack tightly in the container to remove any air bubbles. Make the top surface flat and even to reduce the chance of mold forming.
Add a weight (such as a wine bottle, olive jar, zip top bag with water) on top of the contents.
Liquid will continue to form as the veggies are weighed down.
Cover with a cloth and rubber band to keep flies out. (If using airlock, skip this step).
Check the container in 1 day. If the contents are not submerged in brine, add the reserved brine just enough to cover the contents.
Place in a cool spot (out of direct light) for 14 days. Note: Your house will smell like kimchi.
Remove any cloth, weight and lids and transfer to an airtight container. Store in the refrigerator, where the taste will develop slowly. Will keep for up to 4 months.