I love to use
www.soapcalc.com for my formulations......
you should still know how to convert percentages by hand too though.
years ago, Jenny at
www.lotioncrafter.com gave me the BEST "tutorial" on percentages. I wish I were as good at explaining things as she is, so I hope you understand what I'm trying to explain.
Always start any formula with 100%. your 100% is your batch size. when formulating soaps and stuff, your water and lye are NOT part of the 100%. when formulating anything else, like lotions, your water and everything else in the formula has to equal your 100%.
Simple soap recipe just to help explain, this is a rather wonderful very cheap and very easy recipe btw.....
40% palm (or lard!)
30% coconut oil
30% soy oil
all this equals 100%. Say you want to do a 16oz (1 pound) recipe.
and to add to the confusion, i always always measure in grams.
to find out the grams, your 16oz is 448grams. 16oz x 28 (grams in an oz) = 448 grams.
So how much palm do you need? 448 x 40% (or .40) = 179.2 grams.
coconut oil? 448 x 30% (or .30) = 134.4 grams
soy oil? 448 x 30% (or .30) = 134.4 grams.
So to double check to make sure you have 100%, you add the 179.2 + 134.4 + 134.4 = 448 (your 100%/16oz batch size)
does this help any or did I copletely fudge it all up for you?
