this post was submitted on 25 Apr 2026
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Hi! Since liquid soap is so cheap I want to cheap out by making it cheaper. I pretty much always dilute it which extends its life but the resulting runniness lead to some soap escaping the hand washing my money straight down the sink.

This pain is unbearable and I’m thinking to add a little bit of corn or potato starch, agar or some such from the pantry to increase the viscosity How bad of an idea is this? I figure soap doesn’t really allow for microbe life and starch tends to be quite anti microbial. Same goes for dish soap. The soap is dumpstered so switching to hard soap isn’t cheaper and I haven’t found a foaming dispenser in the trash (yet). But soap is rare in the trash so I want to make last. Alternatively anyone know if a a regular pump can be made foaming or have other creative solutions?

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[–] Kaffeburk@lemmy.world 1 points 1 day ago (1 children)

I’ve heard of this brand, but I already have soap. When it runs out and the bins stop providing more I will consider it!

Oo this is interesting! What causes this degradation? Does regular liquid soap also degrade in it’s bottle or is it concentrated enough to last/effects to be negligible? Thanks for adding information!

[–] Kolanaki@pawb.social 2 points 1 day ago* (last edited 1 day ago)

Soap works by some chemical reaction with water. Adding water to it basically starts it reacting and eventually all the catalysts are used up and all you have is basically water without actual soap in it, but whatever is left after the reaction to the water.