From Newsgroup: sci.misc

Scientists Discovered an Amazing Practical Use For Coffee Ground Waste

Charred coffee grounds could make concrete up to 30 percent stronger, scientists in Australia found.

Their clever recipe could solve multiple problems at once.

Each year, the world produces about 10 billion kilograms (22 billion
pounds) of coffee waste, most of which ends up in landfills

https://www.sciencealert.com/scientists-discovered-an-amazing-practical-use-for-coffee-ground-waste

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From Newsgroup: sci.misc

On 2025-10-16, JAB <here@is.invalid> wrote:

Each year, the world produces about 10 billion kilograms (22 billion
pounds) of coffee waste, most of which ends up in landfills

It makes helluva great fertilizer. Put coffee grounds in your garden -
high in all sorts of good stuff.
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