How To Get Chicken Fat Out Of Clothing Soapmaking: If The ONLY Fat You Have Is Chicken Fat Or Fish Oil, Which Would Be Better? Petroleum Oil?

Soapmaking: If the ONLY fat you have is chicken fat or fish oil, which would be better? Petroleum oil? - how to get chicken fat out of clothing

I write fiction, and they all have it. Give me advice on the soap. I just want to know what is best to produce the least objectionable, because they soap making, and that everything you need to have to work. Not only for bathing, but for washing clothes.

In addition, the saponification of oil? I do not think, but I wanted those questions are not safer.

Thank you for a response from the WHO.