this post was submitted on 24 Mar 2026
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Far too much food is just binned if somebody is too full, needs to leave early, or similar, and if food wasn't wasted, there would not be nearly as large of a hunger crisis. Encouraging the reduction of food waste is great, but I'm wondering whether the inevitable food waste could be collected in special bins and be reprocessed into a mixture of various foods, a bit like recycled plastic almost. This obviously could be bad for those with allergies, and there's no clear expiry date for such a mixed assortment of food. There is also the trouble of people throwing in non food items, like tissues and plastic wrapping. This is already a big problem in recycling!

An alternative could be to separate food waste into multiple bins (meats, vegetables, nuts, dairy, etc.) that could be individually processed, kind of like how recycling is separated into paper, plastic, and cans. Then, allergens could be separated, vegetarian unfriendly products too, and the reprocessed food would be less of a mix and could be portioned into balanced diets.

Some food waste is already processed to become compost, but I'm wondering whether it's possible for reprocessed food waste to be edible and eaten over being dumped in landfills?

edit: mmm yep looks like a really good way to catch all sorts of nasty pathogens. Varied expiry dates also sounds pretty bad. Maybe not a good idea. And yeah, it does sound pretty nasty.

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[–] southsamurai@sh.itjust.works 9 points 1 day ago

Restaurant waste, which is what your post body starts with, can't be recycled like that. It's an unsafe practice due to the contamination gained at the table combined with time out of the temperature safe zone. Even if you killed an the pathogens there, the risk of the toxins left by those pathogens is problematic. That and it would ruin the food trying to kill them to a reasonable degree.

Now, back in the kitchen, you could do what some restaurants do and donate the prepared but unserved food to local distribution centers (often focused on homeless charities or government outlets). But it wouldn't make sense to turn it into some kind of "nutrition loaf". Seriously, look up that term and be prepared to hate the prison system more than you do currently.

And that is why even if the process could be perfectly safe, it would still suck. Nobody should have to eat the horrible crap that it would turn into. If would be cheaper, safer, and more humane to just make sure everyone has good food to eat in the first place.

The only application for the kind of bricks you'd get from the process is feeding people that don't have access to good, healthy food in the first place.