Preservatives – Keeping our foods safe & fresh - Center for …
https://www.canr.msu.edu/news/preservatives-keeping-our-foods-safe-fresh
WEBMay 6, 2019 · Humans have been using chemical preservation for thousands of years and familiar food products such as yogurt, sauerkraut, and kimchi are examples of foods that have undergone chemical preservation. Physical preservation involves different techniques such as salt curing, refrigeration, smoking, drying, and more to protect food quality.
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