1/2 bar shaved castile soap
1/4 cup baking soda
1 tablespoon washing soda
1 quart of hot water
The washing soda (sodium carbonate) makes this solution more caustic and helps to cut grease.
What, no suds?
None of these basic natural recipes will yield a sudsy soap. Why? Because suds aren't necessary to clean anything. In fact, they actually make soap less effective because it becomes harder to rinse off from a surface. Suds in commercial soaps are from the surfactants that are added because consumers like suds. People think that suds = soap that works. Not true, don't be duped by this! Not only are surfectants not necessary to clean, they are often nasty chemicals...sodium lauryl sulfate to name a common one.
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