~*~ SMF April 2017 Challenge - Stripes! ~*~
~ April 2017 Challenge Photo Entry Thread ~

Soap Making Forum > The Soap Making & Craft Forum > Beginners Soap Making Forum > ​Does anyone else do this...?​
Reply
 
Thread Tools
Old 02-16-2017, 07:59 PM   #1
wearytraveler
 
Join Date: Mar 2016
Posts: 207
Liked 113 Times on 62 Posts
Likes Given: 47

Default ​Does anyone else do this...?​

If my recipe calls for, let's say, 9.62 oz. of water I always round it down to 9.00 oz. when it comes time to measure I've been doing this since I start making soap and I'm just wondering if anyone else does this.


wearytraveler is offline  
 
Reply With Quote
Old 02-16-2017, 08:45 PM   #2
Kamahido
 
Kamahido's Avatar
 
Join Date: Oct 2015
Posts: 521
Liked 290 Times on 158 Posts
Likes Given: 1

Default

Some of us go even further with our water:lye ratios.


__________________
I believe everyone has at least one skill that they excel in over all others. It's something that defines who they are. What is it that defines you?
Kamahido is offline  
 
Reply With Quote
Old 02-16-2017, 08:47 PM   #3
toxikon
 
toxikon's Avatar
 
Join Date: Dec 2016
Location: Canada
Posts: 416
Liked 500 Times on 212 Posts
Likes Given: 248

Default

I'm definitely a lot more precise! I aim to be about .05 oz.
toxikon is offline  
 
Reply With Quote
Old 02-16-2017, 08:53 PM   #4
The Efficacious Gentleman
Lifetime Supporting Member
SOAP_LIFETIMESUPPORTER.png
 
The Efficacious Gentleman's Avatar
 
Join Date: Nov 2013
Location: Austria
Posts: 8,002
Liked 7579 Times on 3667 Posts
Likes Given: 3653

Default

If there is no good reason not to, consider switching to grams - you can be more accurate while sticking to whole numbers
__________________
Aka Craig. Effective Preparations for a Gentleman's Ablutions
The Efficacious Gentleman's Webpage ** The Efficacious Gentleman's Facebook Page
The Efficacious Gentleman is offline  
2
People Like This 
Reply With Quote
Old 02-16-2017, 09:06 PM   #5
dixiedragon
 
Join Date: Aug 2013
Location: Birmingham, Alabama, USA
Posts: 4,301
Liked 3202 Times on 1856 Posts
Likes Given: 1420

Default

I would round that down to 9.5, but not all the way to 9. Now, if I was doing that recipe and using a 33% wateril ratio vs the standard 38% the lye calculators start off with, it may very well drop from 9.67 to 9. But wouldn't round it there myself.
__________________
~May the blessings of saponification be upon you.~
Lardinator ^(..)^Swap Addict
dixiedragon is offline  
2
People Like This 
Reply With Quote
Old 02-16-2017, 10:42 PM   #6
Susie
Supporting Member
SOAP_SUPPORTER.png
 
Join Date: Aug 2013
Location: Texas
Posts: 8,061
Liked 6981 Times on 3886 Posts
Likes Given: 14618

Default

Stick to what the lye calculator tells you. If you are not happy with the water amount, change the lye concentration on the calculator. Rounding numbers here and there can cause bad habits.
Susie is offline  
4
People Like This 
Reply With Quote
Old 02-17-2017, 12:40 AM   #7
Steve85569
Supporting Member
SOAP_SUPPORTER.png
 
Steve85569's Avatar
 
Join Date: Oct 2015
Location: North East Oregon, USA
Posts: 1,352
Liked 1366 Times on 659 Posts
Likes Given: 1135

Default

What E.G. said.
I weigh in grams and try to be as precise as possible.
Like others said, if I want a higher lye concentration I simply start with it.

I usually do run a higher lye concentration so reducing the water may cause serious problems. If memory serves me lye wants to be at a minimum of 1:1 with water to safely and properly dissolve and not just go in to solution.

Lye is not my friend. It wants to eat me alive.
__________________
Lardinator in training.
Steve85569 is offline  
Susie Likes This 
Reply With Quote
Old 02-17-2017, 01:07 AM   #8
IrishLass
Administrator
SOAP_ADMIN.png
 
Join Date: Feb 2008
Posts: 11,678
Liked 6134 Times on 3159 Posts
Likes Given: 4100

Default

I do the same as the good Gent and Steve- I weigh everything in grams and try to be as precise as possible.


IrishLass
__________________
"Fair is a place to go to play games and eat funnel cakes".- a Hazel Original
Official Member of the Hoity-Toity Snickerdoodle League.
IrishLass is offline  
Susie Likes This 
Reply With Quote
Old 02-17-2017, 02:16 AM   #9
Gerry
 
Join Date: Dec 2016
Location: Ontario
Posts: 190
Liked 321 Times on 121 Posts
Likes Given: 132

Default

I round my grams. If it calls for 2066.7 grams of lard, I go for 2067.

But seriously, I don't think rounding by ounce is a great idea, unless your batches are like 50 pounds of soap. Being off by 14 or 15 grams can be pretty significant with small batches, especially if you're measuring lye.
Gerry is offline  
 
Reply With Quote
Old 02-17-2017, 03:07 PM   #10
DeeAnna
SOAP_SUPPORTER.png
 
DeeAnna's Avatar
 
Join Date: Feb 2013
Location: Iowa USA
Posts: 7,420
Liked 9730 Times on 4437 Posts
Likes Given: 4374

Default

I'll concede that water is not nearly as critical to measure carefully for safety, since water doesn't affect whether a soap is lye heavy or not. But Steve makes a good point about the max NaOH concentration.

Also, the change of just a percent or two in lye concentration can change how your recipe performs -- whether it gels easier or not so easily, how fast or slow the recipe traces, etc. Looking at my current favorite recipe and translating from grams to ounces, the recipe calls for 16.7 oz of water. If I rounded that down to 16 oz, the lye concentration would increase by 1%. Whether that's significant or not depends on the soaper's point of view. For me, that's a definite change.

I use an elderly but still useful lab scale that weighs to 0.01 grams. While I don't get that finicky for soap making, I do weigh soap ingredients to whole grams like Irish Lass, Steve, and The Gent. I figure there is enough unknown error in a soap recipe due to estimates for lye purity, sap value, etc. I don't need to add to the error by rounding any deeper than that.


DeeAnna is offline  
Susie Likes This 
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Newest Threads