Beginner question: factoring Preservative%

Soapmaking Forum

Help Support Soapmaking Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

sarahmarah

Well-Known Member
Joined
Apr 5, 2020
Messages
221
Reaction score
409
Location
Boston
I've subscribed to Susan Barclay Nichols blog and have been playing around with emulsified scrubs for personal use.
Well I discovered from the blog that I was using the wrong preservative--Liquid Germall Plus (I'm ordering Optiphen Plus). I made a 100 gram test batch and it occurred to me that I had no idea if I had to account for the total batch weight with the sugar included or without?
If not I may have used too much Germall Plus...I don't know lol
I used 1 gram Germall Plus in a 100gram base recipe and added 150 grams sugar that. If its not counting sugar I think I used too much. If it counts the sugar I didn't use enough....eek. Is there a way to work it out easily for those that are not very math oriented?
 
The total bath = everything in the batch before adding the preservative. IMO, that includes the sugar. Phenonip is recommended for sugar and salt scrubs. Usage rate is .5% to 1% of the total weight of the recipe.

100 gram base
150- grams sugar
250 grams total x .5% = 250 x .005 = 1.25 grams

Thank you so much! 😊
 
Back
Top