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Home » Soap Making

Pros & Cons of Working with Thick Trace in Cold Process Soap

Published: Dec 15, 2018 · Modified: Apr 19, 2024 by Celine Logan · This post may contain affiliate links · 6 Comments

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One of the most challenging things when you're first figuring out how to make soap is - hands down - how to control trace. There's quite a learning curve in seeing the different stages of trace in cold process soap. Your batter will normally go from emulsification to light trace (thin pancake batter) to medium trace (light pudding batter) to thick trace (pudding batter) the more you stickblend or the longer you let your batter sit.

Thick trace in cold process soap can work with some recipes, techniques and designs but not in others. #coldprocess #soap #soapmaking
thick trace holds it's shape, the trailing will not sink into the batter

Thick trace is what I want to talk about today. Thick trace is what most beginners end up with when they first start to make soap and that's normal.  It's mostly due to the fact that beginners have the tendency to stick blend for too long and that they're being told to soap at higher temperatures (around 110º F). Soaping at higher temps makes sure that rookies don't encounter "false trace", a state where the soap batter looks emulsified but really isn't, and will separate over time. If you're a beginner simply know that with a little practice it's o.k. to soap cooler if you're aiming for light trace.

Thick trace in cold process soap can work with some recipes, techniques and designs but not in others. #coldprocess #soap #soapmaking
layers with mica lines and a cookie cutter embed

Ideally you want to get to a point in your soaping journey where you can control trace, and make an informed decision about what consistency you're aiming to achieve for your desired design. That's why I thought it might be helpful to talk about thick trace, because it has some merits, but also some downsides.

So, let's dive in, shall we?

Thick trace in cold process soap can work with some recipes, techniques and designs but not in others. #coldprocess #soap #soapmaking
I used the "spoon plop" technique for this soap

Pros of Soaping at Thick Trace

  • it's great for layered designs - the batter will easily support another layer on top with out breaking through
  • it's great for textured tops
  • it's essential for piping
  • it's basically a must if you're making confetti soap, otherwise all your little pieces will sink to the bottom
  • your soap will reach gel phase faster
  • you will be able to unmold your soap sooner
  • less soda ash!!! - yasss, who doesn't want that? this is due to the fact that the soap goes into gel faster and therefore there is less chance for unsaponified soap molecules to react with the oxygen in the air and form soda ash
Thick trace in cold process soap can work with some recipes, techniques and designs but not in others. #coldprocess #soap #soapmaking
confetti soap poured at medium - thick trace

Cons of Soaping at Thick Trace

  • it's much harder to work in colors, you run the risk that your color material stays clumpy or doesn't color the batter evenly
  • there's a greater chance for air bubbles to remain in the finished soap, so give it an extra tap or two on your kitchen counter after you pour
  • intricate wispy swirls won't work
  • designs that involve a long time to do won't work either, since the batter will have set up by the time you're done
  • it's harder to fill your mold evenly and perfectly level, but you can even it out with a spatula

I like working with thick trace, it's a lot of fun to play around with. When I plan to use colors, I try to stick blend to light trace, separate the batch, work the colors in and let it sit until it thickens up. I also like that I seem to have more time to work, since the batter is already thick and it will take quite a while for it to really set up. Thick trace is  also my go-to consistency when I'm doing a quick, no fuss, one colored batch.

Looking for tutorials that involve thick trace? Check these out!

  • Cucumber Mint Soap
  • No Coconut Oil Soap
  • Blossom Soap Macarons

Until next time. Happy Tinkering!

Thick trace in cold process soap can work with some recipes, techniques and designs but not in others. #coldprocess #soap #soapmaking

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  1. Christina says

    March 14, 2019 at 8:30 pm

    Thank you for this info I just jumped into making cold process and seriously almost every batch so far I was assuming that I blended it too thick, air bubbles etc. I trying a new batch this weekend and will be doing some color layering so I’m going to try not to over mix it....

    Reply
    • Celine says

      March 15, 2019 at 9:47 am

      Hi Christina,
      I hope your next batch turns out better. Good luck!

      Reply
  2. Walter says

    October 09, 2020 at 1:53 am

    My lyre refused to mix with the oil and was simply floating on the oil. I watched in disbelief. Later on I got some hard brittle brick aquater of what I invested. Oops. But the colour also changed from green to orange so every thing is wrong. Help.

    Reply
    • Celine says

      October 11, 2020 at 6:50 am

      Tough to say what went wrong. Maybe your measurements where incorrect? Sounds like you used too much lye.

      Reply
  3. Makeda Jardine says

    October 22, 2020 at 11:33 am

    Very informative for those of us that just started our soaping journey.

    Reply
    • Celine says

      October 22, 2020 at 5:12 pm

      Glad you found it interesting

      Reply
headshot celine.

Hi, I'm Celine, I've been making my own soap and skincare since 2015 to help my family's sensitive skin. You can do it too, I'll show you how right here.

More about me →

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