TIL Many hotels including Hilton and Marriott collect guests’ used soaps, scrape the hair and stuff off, then melt them down to make new soaps.

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Hilton is recycling used bars of hotel soap to save the planet | CNN Business

https://www.cnn.com/2019/03/18/business/hilton-soap/index.html

Used soap from Hilton Hotels is getting a second life.

Used soap from Hilton Hotels is getting a second life.