Tips: In the first few days, you will see air bubbles rising, this is a good sign! If this causes extra liquid to spill over, set jars in a shallow plate.
If you don’t have enough water pulled out of the cabbage to submerge everything, then you will need to add some brine (salted water). Use 1/2 Tbsp of salt per cup of water.
If you see foam forming on top as it ferments, this is normal, just spoon it off.