Add chopped napa and green cabbage to a large bowl, add water and salt to cover completely. Mix thoroughly to ensure all cabbage is coated with mixture.
Let brining mixture sit for 2-3 hours. After a few hours cabbage will appear wilted.
Strain and rinse cabbage VERY thoroughly to ensure most of the salt is rinsed off.
Using gloves, mix cabbage together with all of the vegetables, spices, apple or pear, fish sauce, and soy sauce (optional). Combine all ingredients thoroughly
Add kimchi to mason jars- leaving about an inch of room in each container. Place jars in room temperature for 2-3 days. Open lids everyday to allow gases to escape.
Taste to ensure level of sourness is achieved, cover jar with a piece of plastic wrap, place lid on tight, and refrigerate.