Soap's bubbling on the underside?

[toxikon]

I did wonder if it was a melting point, but then I thought I can melt it in my hands and there's no way I'm 76 celsius. Is one better than another? I'm not sure I've ever come across fractionated coconut before.

It's 76F I believe, making that 24C.

 

[DianaPopova]

I had a similar problem when I used silicone molds instead of wooden ones .. Still don't understand the reason

 

[penelopejane]

I had a similar problem when I used silicone molds instead of wooden ones .. Still don't understand the reason

Some people say it is if you overheat the silicone it happens. You only have to CPOP at a temp that is too high and once it has been over heated the pock marks will always appear.

It hasn't happened to me yet (touch wood) it's just what I have read here.

 

[CTAnton]

I get this silicone rash on occasion...and considering the various shapes I use(ovals,rounds) its not easy to plane off the "soap acne"...
I haven't made soap for a few weeks now BUT considering what I've read here I'm thinking this:
Most ovens lowest setting is 170 degrees F and I'm wondering if thats too warm to CPOP in silicone. I've got a second hand pizza stone on the lowest rack in my oven to act as a heat reservoir once the oven is turned off. I'm going to try turning the oven on and bringing it to 170 degrees for lets say, 20 minutes during emulsification and light trace. Then turn the oven off and let it slowly cool while I continue soaping. When I'm ready to put the soap in the oven I'll monitor the temperature at that time and not put the soap in until 110 to 120 degrees. There's "forcing" gel and then there's "nudging" gel...

 

[RalphTheMastiff]

I get this silicone rash on occasion...and considering the various shapes I use(ovals,rounds) its not easy to plane off the "soap acne"...
I haven't made soap for a few weeks now BUT considering what I've read here I'm thinking this:
Most ovens lowest setting is 170 degrees F and I'm wondering if thats too warm to CPOP in silicone. I've got a second hand pizza stone on the lowest rack in my oven to act as a heat reservoir once the oven is turned off. I'm going to try turning the oven on and bringing it to 170 degrees for lets say, 20 minutes during emulsification and light trace. Then turn the oven off and let it slowly cool while I continue soaping. When I'm ready to put the soap in the oven I'll monitor the temperature at that time and not put the soap in until 110 to 120 degrees. There's "forcing" gel and then there's "nudging" gel...

Solar Oven..........

 

[IrishLass]

Just before I place my soap in the oven I turn it on the regular 'Bake' setting for 3 minutes, and then I immediately turn it off. I found out that three minutes is all it takes for my oven to reach 120F, according to its internal thermostat.


IrishLass

 

[shunt2011]

I use silicone and rarely ever have any issues with dimpling or rash. I don't generally CPOP but I do gel all my soaps. I only get th rash if I'm impatient and try to unmold too early. I do use SL in my soap and get a nice smooth as glas finish.

 

[penelopejane]

I have a laser thermometer and I test the oven until it reaches 100*F
I've worked out it takes 5 mins to get it to temp while I'm soaping. I turn it off and put the wrapped soap in and don't open the oven again until the next day.

I have BB silicone molds. I haven't had the silicone rash.