News for hackers. Stuff that matters.

A comment on South Korea now recycles 95% of its food waste. Parent comment

Re:South Korea now recycles 95% of its food waste by kraftman on Saturday April 13, 2019 @04:41PM (#19655578)
Isn't that how all food is measured though?
[ Parent | on HN ]
Re:South Korea now recycles 95% of its food waste by the8472 on Saturday April 13, 2019 @05:14PM (#19655792)
no, foods are analyzed for their digestible contents (fats, fiber, carbs, various kinds of alcohos etc.) and their energy content is then looked up in reference tables. The reference tables are in turn populated with more careful experiments that take digestion, waste products and metabolic efficiency into account.

Directly measuring the physiological energy content for millions of food products would be impractical.

[ Parent | on HN ]
Re:South Korea now recycles 95% of its food waste by Isamu on Saturday April 13, 2019 @05:10PM (#19655768)
It is burned to measure total energy and then a model is applied to approximate the calories available to the body.
[ Parent | on HN ]