Sweating soaps

Discussion in 'Lye-Based Soap Forum' started by meena.shah, Jul 14, 2019 at 12:02 PM.

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  1. Jul 14, 2019 at 12:02 PM #1

    meena.shah

    meena.shah

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    Please can anyone help me as we have high humidity my soaps and and become mushy. Silica pouches are of no use. Please suggest what an I do.
     
  2. Jul 14, 2019 at 1:12 PM #2

    lsg

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    I would invest in a room dehumidifier for your storage area. I have a room dehumidifier in every room of our finished basement. You wouldn't believe the amount of water each one pulls out of the environment.
     
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  3. Jul 14, 2019 at 1:35 PM #3

    Dawni

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    Some days our humidity here goes up to 75% and while I've so far not had soap that turned extremely mushy, I have experienced excessive sweating. Also when it rains.

    I noticed that my soaps stored inside some sort of container (clean shoe box, plastic food containers, etc.), lined with paper didn't sweat at all, compared with the ones outside the boxes.

    I just transferred some of the ones that were outside into boxes with rice grains on the bottoms, under the paper lining. Let's see if those work better.

    I cannot afford a dehumidifier just yet..
     
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  4. Jul 15, 2019 at 9:31 AM #4

    earlene

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    I have also experienced the same thing, Dawni.

    I use paperboard or cardboard boxes to store my cured soaps. None of the soap inside the boxes have sweat.
    For comparison purposes, I kept out a bar of some batches while the rest are stored in boxes, and have identified which ones are more prone to sweating in high humidity. Even the ones prone to sweating in high humidity do not sweat inside the boxes.

    I fill the boxes with as much soap as will fit inside each box, but sometimes, the boxes are only half full if I have removed some to give to people. How many bars of soap are inside the boxes has not impact on how well they stay dry.

    My conclusion is that the cardboard or paperboard boxes provide sufficient barrier to the ambient moisture to keep what is inside from being affected. However, I feel it important to note that over time, if the humidity were to remain high year-round, the boxes would eventually absorb moisture themselves and at that point would stop providing a barrier.

    But in my situation, the humidity is only high in my house during the summer months. Were I to live in a rain forest, I may have to buy new boxes periodically.
     
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  5. Jul 15, 2019 at 10:35 AM #5

    Dawni

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    Yes earlene, I expect the boxes will need to be changed periodically, but since there isn't any sweating happening in there, it shouldn't be very often.

    I also now know which ones don't sweat much, interesting that they're the ones with lard at 25-35%. The 60% and above lard soaps did sweat but not as much as the soleseifes (doh lol) and also less than any soap with more than 3.5% salt (nother doh hehe). Is it the same for you, @earlene?

    I just realized, after you mentioned rain, that the most sweating I noticed happened when we had week long rains, while it was still technically summer. So hot n humid, not just hot.

    When the dams were reporting critically low levels aka no rain at all the soaps were fine. I have to keep an eye on them now that the monsoon season is officially starting. We get rains almost everyday for months while the weather cools down. Let's see how the soaps take that.
     
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  6. Jul 15, 2019 at 2:24 PM #6

    meena.shah

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    Thank you

    Do you line with tissues paper.
     
    Last edited by a moderator: Jul 15, 2019 at 2:30 PM
  7. Jul 15, 2019 at 4:55 PM #7

    DeeAnna

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    Glycerin and table salt are hygroscopic, meaning they can absorb water from the air or any other source of water. Recipes with lower amounts of lye per pound or kilogram of finished soap, such as a lard soap, will contain a bit less glycerin than recipes with more, such as a soap high in coconut oil or palm kernel oil. That might explain the difference you're seeing, Dawni.
     
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  8. Jul 15, 2019 at 5:38 PM #8

    Dawni

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    Hope some of the above tips work for you :)

    No I don't use tissue. I use paper we'd otherwise throw away, blank on one side and maybe print or writing on the other. Blank side touching the soap of course hehehe... So far so good, no ink transfers as of now.

    Good to know, thank you.. I learned something new today :)
     
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  9. Jul 16, 2019 at 8:44 AM #9

    earlene

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    What I meant about having to replace the boxes wasn't about the moisture from the soaps inside, but about the moisture from the exterior (the humidity in the air).

    I don't make a lot of lard soaps, although I do make some for family, and only recently made soap with high lard (to use up what I had) and because I am away from home this month, I'm not there to even notice if they are sweating. But my salt soaps haven't sweat at all since I wrapped them in shrink wrap and then stored in boxes. I do still have 3 bars unwrapped and out in the open that I checked before leaving home and they were still dry. But not as smooth on the surface as the soaps wrapped and inside boxes, so I think they had sweat at some point and the water had evaporated. I did cover them with paper towels though, just in case. I don't have any soleseife bars, so no answer there.

    I still want to go back and determine the specific recipes I used that are more negatively affected by the humidity so I can determine if they are really worth continuing to make. I am leaning toward 'probably not' at this point.
     
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  10. Jul 17, 2019 at 7:48 AM #10

    meena.shah

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    Do you pack the each bars before packing in the box
     
  11. Jul 17, 2019 at 7:53 AM #11

    meena.shah

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    I lined with the paper but the papers are soaking oils from the soaps. I am so put off nothing is working and I have around 10 kgs bars.
     
  12. Jul 17, 2019 at 8:13 AM #12

    Dawni

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    The soaps with majority high oleic fats are sweating more, especially the ones I tried with Zany's faux seawater. Like I said, least are the higher lard ones. Let us know what you find out after your lovely trip away from home :)
    I've had to change my paper liners periodically to prevent the soap from sticking. I'm afraid I have no other answers but to babysit them haha. Since noticing the sweat I check on em at least every evening, if not once in two days.

    Have you tried wiping the sweat off, and dunking the soaps in a tub of rice grains? The cured ones I mean..

    Or find a way to stabilize the temps and humidity. I noticed now that the weather isn't erratic, meaning it's stuck to cool rather than shuffling between cool n hot with rains either way, the sweating has lessened.
     

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