cp gm overheating

[kennedy82mp]

I have made probably 100 batches of goat milk soap with the same recipe, molds, and oils from the same supplier. I mix my gm/lye to my oils with both being between 110 to 115 degrees. I often do 3 batches at the same time and every now and then one of my batches will overheat.

Can someone please help me with this issue. is it that some of my goats milk may have more fat in it or something?

 

[Half Caper Farm]

Where are you getting your goat's milk? From the store, or from the farm?

Some goats have higher butterfat % than others, and it also varies depending on the stage of their lactation, so if you're buying it from the farm, it's a good possibility that the butterfat is higher at times. That shouldn't cause overheating though.

I mix at much cooler temps than that and don't have a problem - maybe 115 is too hot? I know my first batch I ever made volcanoed at around 120. :shock:

 

[kennedy82mp]

what temp do you mix and pour at?

 

[Half Caper Farm]

Not sure I stopped measuring the temperature when I started using completely frozen goat's milk. I think the lye/milk is around 80-85 F, and the oils would be around 90-100 F. I melt the hard oils in the microwave, then add the liquid room temperature oils, so they don't get really hot.

 

[busymakinsoap!]

I just think gm is unpredictable. Although a wonderful addition to soap, it seems to pop up on here often due to complications.

I have made many beautiful batches, but I have also had separation, overheating, stringy spots, and never know the reason, its just a risk we take - but if it works, its well worth it

 

[sandyfootfarm]

Could be the difference between milk fats in different milkings. Have you popped it in the freezer after pouring? I always do this and haven't had problems, as well as soaping very cool. The one batch that I did think gelled after taking out of the freezer hadn't, it was just the pumice in it making it dark.

 

[Half Caper Farm]

I just think gm is unpredictable. Although a wonderful addition to soap, it seems to pop up on here often due to complications.

I have made many beautiful batches, but I have also had separation, overheating, stringy spots, and never know the reason, its just a risk we take - but if it works, its well worth it

Guess I've been lucky - haven't had a bad batch yet! 8)

 

[carebear]

fats not the issue - it's the sugar in the milk that causes overheating. I don't know what the variability between milkings is but I doubt it's enough to make a difference = but what WILL make a difference is the temps you soap at, the mold you use, the environmental temp, how closely molds are place (think of them as little heaters themselves), etc.

 

[soapbuddy]

Try elevating the mold and put a fan on it. Don't insulate.