70% Vs 91% Rubbing Alcohol

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melonie

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Hi All,

Would anybody know if there's a difference between the two kinds of rubbing alcohol on soaps. I have been using 70% rubbing alcohol to spray on my soaps to get rid of the bubbles. I notice that the alcohol doesn't evaporate fast enough, and the droplets would form little indentations on the soaps. :( Has anybody experienced the same thing? Please let me know.

Have a wonderful day,

Melonie
 

cindymeredith

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melonie said:
Hi All,

Would anybody know if there's a difference between the two kinds of rubbing alcohol on soaps. I have been using 70% rubbing alcohol to spray on my soaps to get rid of the bubbles. I notice that the alcohol doesn't evaporate fast enough, and the droplets would form little indentations on the soaps. :( Has anybody experienced the same thing? Please let me know.

Have a wonderful day,

Melonie
Hi Melonie,
I've always used 91% (for no particular reason) and never experienced any problems with it.
 

michelleB

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70% alcohol has 30% water
91% alcohol has 9% water

Hence, the 91% alcohol would be "truer" and evaporate much quicker. Learned the importance of this while working in the electronic industry. People always hear to clean electrical components with alcohol, but if you pick the wrong one, you're creating moisture damage instantly. I only use the 91%. Same principal applies to soaps... use the one with less water and you'll get less of a water effect (droplet indentions, slow evap).
 

melonie

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Hi Everyone,

Thank you for solving that problem and thanks for the tip!

Here's to soapmaking,

Melonie
 

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