#steam_digester
Steam digester
17th-century high-pressure cooker
The steam digester or bone digester is a high-pressure cooker invented by French physicist Denis Papin in 1679. It is a device for extracting fats from bones in a high-pressure steam environment, which also renders them brittle enough to be easily ground into bone meal. It is the forerunner of the autoclave and the domestic pressure cooker.
Wed 7th
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