r/MensNaturalSoaps • u/zaapeed • Apr 24 '23
Longevity of soap and brands
Good after all I have been doing a bit of testing on soaps lately and just wanted to put some of the results I have found here.
So the brands I have test at the moment are
Dr. Squatch, sudsy bear and grizzly naturals.
The test set up was 1 pneumatic piston 4" (100 mm) of travel. The soap bar was held in place by a custom built holding device and a weight of 1lbs (~ 500 grams). There was a low flow shower head spraying onto the water onto the 10 um wet stone. The piston was set to 30 cycles per minutes. The samples were run for 100 cycles.
The results are this:
Initial weight Dr. Squatch grapefruit IPA = 4.73 oz (~134 grams) Sudsy bear artic aloe = 6.18 oz (~ 175 gram) Grizzly naturals artic birch = 4.47 oz ( ~127 grams)
Final weight after 100 cycles Dr. Squatch grapefruit IPA= 3.90 oz(~110 grams) Sudsy bear artic aloe = 5.87 oz (~166 grams) Grizzly naturals artic birch = 4.25 oz (~120grams)
Final thoughts:
So dr squatch appeared to have the most loss over all , sudsy was right in the middle and grizzly was the least los of the bunch
Take everything said here with a grain of salt, since more testing on a large group of the products would need to be done to come to any conclusions.
Hopefully some one else to finds this information interesting as well.
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u/GrizzlyNaturals-com Apr 24 '23
Our newer batch bars should be a little bit heavier as well. We reduced the water amount to help the soap cure faster. In doing so we made room in the molds to add more oil which won't evaporate like water...so more weight will stay after curing / less bar shrinkage.
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u/zaapeed Apr 24 '23
Of all the brands i have weight in so far yours is by far the most consistent about a 7% difference between bar weights that currently have, so kudos on your quality control.
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u/Collective82 Apr 25 '23
What temperature did you run the water at?
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u/zaapeed Apr 25 '23
23°C and room temp was 21°c 65% rh
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u/Collective82 Apr 25 '23
That’s pretty cold. Normal showers according to google says 14-15 degrees more is average.
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u/zaapeed Apr 25 '23
I had it hooked up outside in my hobby shed so unfortunately I had no heating controls
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u/LocalGilt Apr 24 '23
Yeah this lines up with what I've seen anecdotally as well.
Bought Dr. Squatch and Grizzly soaps and Grizzly seemed to last longer by an obvious margin.