Cabbage is a popular cultivar of the species Brassica oleracea Linne (Capitata Group) of the Family Brassicaceae (or Cruciferae) and is a leafy green vegetable. It is a herbaceous, biennial, dicotyledonous flowering plant distinguished by a short stem upon which is crowded a mass of leaves, usually green but in some varieties red or purplish, which while immature form a characteristic compact, globular cluster (cabbagehead).
Cabbage leaves often have a delicate, powdery, waxy coating called bloom. The occasionally sharp or bitter taste of cabbage is due to glucosinolate(s). Cabbages are also a good source of riboflavin.
Selecting:
Choose cabbage heads that are firm and dense with shiny, crisp, colorful leaves free of cracks, bruises, and blemishes. Severe damage to the outer leaves is suggestive of worm damage or decay that may reside in the inner core as well.
There should be only a few outer loose leaves attached to the stem. If not, it may be an indication of undesirable texture and taste. Avoid buying precut cabbage, either halved or shredded, since once cabbage is cut, it begins to lose its valuable vitamin C content.
Storage:
Keeping cabbage cold will keep it fresh and help it retain its vitamin C content. Put the whole head in a plastic bag in the crisper of your refrigerator. Red and green cabbage will keep this way for about 2 weeks while Savoy cabbage will keep for about 1 week.
If you need to store a partial head of cabbage, cover it tightly with plastic wrap and refrigerate. Since the vitamin C content of cabbage starts to quickly degrade once it has been cut, you should use the remainder within a couple of days.
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