Why is it brittle?

Discussion in 'Recipe Feedback' started by ozziesgirl, Feb 11, 2019 at 8:59 PM.

Help Support Soapmaking Forum by donating:

  1. Feb 11, 2019 at 8:59 PM #1

    ozziesgirl

    ozziesgirl

    ozziesgirl

    Active Member

    Joined:
    Mar 26, 2016
    Messages:
    43
    Likes Received:
    11
    Location:
    Central Iowa
    I made a batch of soap with the following recipe because I wanted to use up some different oils I had on hand.

    12.3 oz. coconut oil
    10 oz, lard
    10 oz. olive oil
    3.7 oz. grapeseed oil
    3.2 oz. cocoa butter
    .8 oz. swt. almond oil
    16 oz. water
    6.68 oz. lye
    1 oz. lemongrass EO

    It was a CP soap. Half of the soap went into a silicone loaf mold, and the rest in silicone bar molds. It set in my pretty chilly basement for 48 hours.
    The bars from the individual molds are great, and the loaf looked beautiful when I dropped it out, but it ended up being pretty brittle when I cut it. What went wrong?
    I mostly make soap for my family, and sell a little to friends because I make more than we can use. When I used to just make soap and not give any thought to the temps and conditions, it never seemed like I had problems. Now that I have started trying take it up a notch and be more deliberate with my methods, things go funky on me all the time.
     
  2. Feb 11, 2019 at 9:10 PM #2

    lenarenee

    lenarenee

    lenarenee

    Supporting Member

    Joined:
    Jan 15, 2014
    Messages:
    3,099
    Likes Received:
    2,598
    I haven't run this through the soap calculator, but could the problem be that you simply cut the loaf a little late?

    What do you mean by brittle?
     
  3. Feb 11, 2019 at 9:11 PM #3

    dixiedragon

    dixiedragon

    dixiedragon

    Well-Known Member

    Joined:
    Aug 1, 2013
    Messages:
    5,977
    Likes Received:
    4,476
    Location:
    Birmingham, Alabama, USA
    I'm too lazy to run the recipe, but I'd blame the coconut and the cocoa butter. What percentages are they?

    Can you post pictures?

    The loaf probably gelled, so it was harder than individual bars. When your soap is firm with some give, like a block of cheddar, it's ready to cut. Cream cheese or brie - too soft to cut. Parmesan - waited to long, it will be brittle.
     
    Zing and DeeAnna like this.
  4. Feb 11, 2019 at 9:42 PM #4

    cmzaha

    cmzaha

    cmzaha

    Supporting Member

    Joined:
    Sep 19, 2011
    Messages:
    8,889
    Likes Received:
    7,157
    Location:
    Southern California
    Did you list all your oils above for proper weights? SAO looks like it is listed at 0.8 oz, if that is correct your soap is quite lye heavy, so I am thinking you did not mean to add the decimal.
     
    Amaress likes this.
  5. Feb 11, 2019 at 9:57 PM #5

    ozziesgirl

    ozziesgirl

    ozziesgirl

    Active Member

    Joined:
    Mar 26, 2016
    Messages:
    43
    Likes Received:
    11
    Location:
    Central Iowa
    96B8A2B0-055A-4597-8D6C-94667B869EC4.jpeg Oils above are correct.
    It was definitely closest to Parm. I typically make soap with a larger quantity of olive oil and soft oils, so I am used to being able to wait 4 or 5+ days to cut bars. Maybe it was just too hard.
     
  6. Feb 11, 2019 at 10:11 PM #6

    dixiedragon

    dixiedragon

    dixiedragon

    Well-Known Member

    Joined:
    Aug 1, 2013
    Messages:
    5,977
    Likes Received:
    4,476
    Location:
    Birmingham, Alabama, USA
    Looks good though! If you JUST CAN'T STAND IT, you could put it back in the mold, put the old in the oven and put it through a second gel. It should come back together. But it might also cook off and weaken your scent.
     
  7. Feb 11, 2019 at 11:09 PM #7

    Amaress

    Amaress

    Amaress

    Active Member

    Joined:
    May 22, 2018
    Messages:
    40
    Likes Received:
    22
    cmzaha is right on the money here, you have over an extra ounce of lye in that soap. Lye heavy soap, besides dangerous, is very hard and brittle. You should rebatch this with extra oils. How did you come by your recipe?
     
  8. Feb 11, 2019 at 11:20 PM #8

    ozziesgirl

    ozziesgirl

    ozziesgirl

    Active Member

    Joined:
    Mar 26, 2016
    Messages:
    43
    Likes Received:
    11
    Location:
    Central Iowa
    Well that is an excellent question, because I have the soapcalc numbers printed out, and somehow I transferred them to paper incorrectly. So, mystery solved about the brittleness, but now my question is, where do you learn about rebatching with extra oils?
     
    Amaress likes this.
  9. Feb 12, 2019 at 1:57 AM #9

    Dawni

    Dawni

    Dawni

    Well-Known Member

    Joined:
    Sep 15, 2018
    Messages:
    858
    Likes Received:
    885
    Location:
    Philippines
    There's different ways to rebatch.. Slow cooker, microwave, mixing grated soap in with new soap batter... and there's a ton of info on the forum if you do a search. Then you can see which way you'd rather be doing.

    "Rebatch site:soapmakingforum.com" is what I'd enter in my browser search :)
     
    ozziesgirl likes this.

Share This Page