Optional additional ingredients: ginger, caraway seed, garlic, juniper berries, lemon juice.
*Every cabbage head is going to be a different size and weight. To achieve more consistent results, it is advisable to weigh the cabbage and a percentage of sea salt (2% is a good start). For example if your cabbage weighs 1 kg (1,000 grams), you would add 10 grams salt. 2 Tablespoons is a good volume measurement for an average head of cabbage, but if you want to start getting it down to a science, weighing it out will get you closer results.
**Avoid opening the jar too frequently. Every time you open it up, you are increasing risk for ‘bad bacterial’ growth as oxygen is introduced.