2,000-year-old butter found in Irish bog is still edible
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Long before the invention of refrigerators, ancient people found creative ways to keep their dairy products fresh. In parts of Ireland and Scotland, that sometimes involved burying mounds of butter in local bogs, where the low temperatures, high acidity, and minimal oxygen would provide safe, long-term storage. One such piece of "bog butter" was recovered recently from Ireland's Emlagh Bog, weighing a massive 10 kilos (22 pounds) and estimated to be over 2,000 years old. The remarkable...