Sauerkraut — cabbage shredded, salted, and fermented by *Lactobacillus* bacteria until sour, tangy, and shelf-stable — arrived in America with German immigrants and became a staple of German-American communities from Pennsylvania to Wisconsin. The technique is identical to Korean kimchi in its basic biology (salt + vegetable + *Lactobacillus* = lactic acid fermentation) but the product is different: sauerkraut uses only cabbage and salt (no chilli, no garlic, no fish sauce). Sauerkraut on a hot dog (New York-style), on a Reuben sandwich, alongside bratwurst (AM4-02), and as a condiment with sausages is the German-American thread through American food. · Preparation
This is the professional-depth technique entry for Sauerkraut, including full quality hierarchy, species precision, and cross-cuisine parallels.
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