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Calculation Question


DeJae

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Ok, if some one gives me percentages for a formular

say

30% This

25% That

15% Something else

30% Other

When I plug that into soap calc and then want it to be for a 4# mold

at the top at total oil weight, do I click on pounds and put it like 3.25 # as to let there be room for the Lye and water get added to total 4#?

I figured if I put total oil weight as 4# then the water/lye mix will put it at 5 or so.

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soapcalc only deals with the weight of the oils when calculating batch size in that box. so yea, you will need to either know the oils capacity of your mold ( L x W x H x 0.4 = oz of oils) or fiddle around with adding the oils amount to the water amount.

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SOME mold manufacturers define the volume of their mold by the total amount of material (oils + lye + water) it will hold.

OTHERS define mold size by the amount of oils only.

I personally like to work with the volume by oils only. You can determine that yourself by measuring the inside of your mold. Length X width X height X 0.4 will give you the approximate ounces of oils that the mold will hold once mixed with water & lye.

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SOME mold manufacturers define the volume of their mold by the total amount of material (oils + lye + water) it will hold.

OTHERS define mold size by the amount of oils only.

I personally like to work with the volume by oils only. You can determine that yourself by measuring the inside of your mold. Length X width X height X 0.4 will give you the approximate ounces of oils that the mold will hold once mixed with water & lye.

The current recipe I was using was total 64 ounces with water and lye and fits nicely in my molds.

So I kind of figured I need to plug into the SoapCal approximately 3.25 ounces for the oils because the lye/water will bring it back up to the 4#

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The current recipe I was using was total 64 ounces with water and lye and fits nicely in my molds.

If you already have a recipe that you know fits the mold in question, why wouldn't you just use the same amount of oils for the new formula?

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Assuming that you know what your mold holds, it's easy to then take the percentages and get amounts.

For this 'example' I'll assume your mold holds 4 lbs of OILS. Since we're working with ounces, that's 64 oz total.

30% Olive

20% Coconut

20% Palm

10% Cocoa Butter

5% Castor

15% Rice Bran Oil

Olive Oil - 64 X 0.3 = 19.2 oz

Coconut - 64 x 0.2 = 12.8 oz

....and basically follow that math till you have everything.

HTH!!!

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