Quantcast

calculating formulas10

SoapMakingForum

Help Support SoapMakingForum:

Joined
Oct 24, 2018
Messages
5
Reaction score
0
Location
Florida
I should know this but I have forgotten....If you are making a batch of soap and are trying to figure out how many pounds of soap it will make, do you include the water in the recipe?
For example, if you have 128 of oils and then lets say 32 oz of water and 16 oz of lye (just making this up), what size batch are you making???? Is this an 8 lb batch OR 10 or what??? I used to know this...... thanks!!!!!
 

Ford

Supporting Member
Joined
Mar 24, 2020
Messages
146
Reaction score
223
Location
NewHampshire
The 2 numbers I use.... Total "oil weight" and total "batch weight". I use oil weight to determine amount of soap to be made. I use total batch weight when splitting batch for colors.
 
Joined
Oct 24, 2018
Messages
5
Reaction score
0
Location
Florida
The 2 numbers I use.... Total "oil weight" and total "batch weight". I use oil weight to determine amount of soap to be made. I use total batch weight when splitting batch for colors.
so If you havea a 6 lb mold, then you would just use oil weight to calculate for batch correct?

I have a 6 lb mold which is why I am asking? so 6 lb of oils or TOTAL oil, water and lye?
 

cmzaha

Supporting Member
Joined
Sep 19, 2011
Messages
11,301
Reaction score
10,220
Location
Southern California
A 6lb mold will hold around 58 oz of oils. I say approx. You can calculate using the H x W x L x .40 formula
 

lshone

Lifetime Supporter
Joined
Sep 13, 2018
Messages
18
Reaction score
34
Location
Alberta, Canada
I have a 6 lb mold which is why I am asking? so 6 lb of oils or TOTAL oil, water and lye?
My interpretation would be total of all ingredients = 6 lbs.
Having said that I'm guessing you're trying to figure out how much oil to use to fill the mold, the reply by @cmzaha will get you close.

You can calculate using the H x W x L x .40 formula
 

Zany_in_CO

Saponifier
Joined
Mar 9, 2017
Messages
4,924
Reaction score
3,760
Location
SE Denver CO
There's a simple formula for guestimating the amount of soap any amount of oils will make. Example:
30 oz. oils (by weight) X a factor of 1.37 = 41 oz. soap (approx) which just fits my WSP 1501 mold.

I'm math challenged, so to find out how much a mold holds, I use the resizing feature on Summer Bee Meadows Calc
 

Ford

Supporting Member
Joined
Mar 24, 2020
Messages
146
Reaction score
223
Location
NewHampshire
Would 1.37 be variable depending on lye concentration?
 
Last edited:

Zany_in_CO

Saponifier
Joined
Mar 9, 2017
Messages
4,924
Reaction score
3,760
Location
SE Denver CO
To answer your question, the factor of 1.37 results in an approximate weight of soap. I've never investigated how lye concentration affects the result. Never even felt the need to. But that's just me. KISS-ing... Keeping It Simple Sweetie. ;)
 
Last edited:

AliOop

Lifetime Supporter
Joined
Nov 15, 2018
Messages
1,954
Reaction score
2,390
Location
US
@Zany_in_CO took me a minute to figure it out.

But I am pretty sure that autocorrect changed @Ford ’s wording from “Hijack” to “hi jack.”

He was trying to warn that his post was a slight hijack of the OP’s thread. Oops 🤪😂
 

lsg

Staff member
Admin
Joined
Oct 14, 2007
Messages
13,762
Reaction score
5,259
Any criticism of a member's post should be sent in a pm to that member. Let's keep our forum friendly.
 

Zany_in_CO

Saponifier
Joined
Mar 9, 2017
Messages
4,924
Reaction score
3,760
Location
SE Denver CO
He was trying to warn that his post was a slight hijack of the OP’s thread. Oops 🤪😂
Ohmygosh! Of course! Too funny! Smack Laugh.gif
Thanks for figuring that out for me. I'm suffering from "COVID Brain" these days due to social isolation, both enforced and by choice as I am at great risk for getting the bug. 😢

Any criticism of a member's post should be sent in a pm to that member. Let's keep our forum friendly.
Indeed. TBH "jack off" really startled me that anyone would say something like that on purpose. So glad that @AliOop was able to figure it out. @lsg Thank you for making both posts all nice again!
Thanks.gif
 

Ford

Supporting Member
Joined
Mar 24, 2020
Messages
146
Reaction score
223
Location
NewHampshire
Oh my gosh. Didn't realize. What happen to the front of my post. I had a " hijack on" up front. 😳
 

lsg

Staff member
Admin
Joined
Oct 14, 2007
Messages
13,762
Reaction score
5,259
I deleted the "j--- o-" part of the post as that could be interpreted the wrong way.:)
 

AliOop

Lifetime Supporter
Joined
Nov 15, 2018
Messages
1,954
Reaction score
2,390
Location
US
I'm so immature, the whole thing still makes me giggle.

@lsg maybe double-check. I still see the j-off on my end.
 

GemstonePony

Supporting Member
Joined
Jun 15, 2020
Messages
563
Reaction score
665
Location
Minnesota, USA
I have been wheezing about this mixup all afternoon, because I'm also immature. Just popping in to say that I'm the type of lazy individual who sets her oil percentages, lye concentration, additives to percentage, and fragrance percentage for that batch, and then I change the amount of oils that SMF is calculating for until the total batch weight is the number I want to see. I tend to be additive heavy, though.
 

Latest posts

Top