# Brambleberry says different (lye/water ratio)

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#### Kitty_Boots

##### Active Member
I did all the calculations to determine my lye/water ratio for this new soap twice..

907.18g oils, 5% superfatted

Castor Oil: 5%
Coconut Oil: 11%
Babassu Oil: 11%
Sal Butter: 12%
Shea Butter: 5%
Olive Oil: 56%

Hand calculated, my lye/water ratio should be: 139.54g lye/302.21g water
Brambleberry is saying: 123.12g lye/299.37g water

That's a big difference in lye.. What's up?

When I type it into soapee I get 123.9 g of lye to use. Either way its <2% difference in lye amount which is covered by your SF.

What SAP values are you using?

I did all the calculations to determine my lye/water ratio for this new soap twice..

907.18g oils, 5% superfatted

Castor Oil: 5%
Coconut Oil: 11%
Babassu Oil: 11%
Sal Butter: 12%
Shea Butter: 5%
Olive Oil: 56%

Hand calculated, my lye/water ratio should be: 139.54g lye/302.21g water
Brambleberry is saying: 123.12g lye/299.37g water

That's a big difference in lye.. What's up?

what SAP values are you using for your oils? I put your recipie into Soapee and it agrees with the BB calculator.

I'll double check my sap values.. I'm using NaOH

WELL! Hahaha there's the problem! I somehow managed to use the wrong sap value for EVERY SINGLE oil... I must have mixed them up when reading off the page.. lol

WELL! Hahaha there's the problem! I somehow managed to use the wrong sap value for EVERY SINGLE oil... I must have mixed them up when reading off the page.. lol

That is why I just use a soap calculator. I would do that far too often. Haha

Not me. I'm good at math. I'd never make that mistake.

Bwahahahahahahahah!!

If you do the calcs by hand ... my advice is to create a spreadsheet to keep track of all the numbers. I'd never make a decent batch of soap by hand if I had to do the calcs entirely by scratch!

I do the calcs by hand and always check with an online lye calculator.. I was just not thinking to check my SAP values.. but all that means is that I know what to verify next time because this will be ingrained in my brain!

If you do the calcs by hand ... my advice is to create a spreadsheet to keep track of all the numbers. I'd never make a decent batch of soap by hand if I had to do the calcs entirely by scratch!

I do love spreadsheets.. I'm going to make one while my lye mixture cools! ^_^

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