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Creamy Lemon Calendula Hot Process Soap (10-Minute Hot Process Soap)

Learn how to make this delicious Creamy Lemon Calendula Hot Process Soap in just 10 minutes!

Spring time is finally here! What better way to celebrate than making this beautiful, bright and fresh Creamy Lemon Calendula soap? We formulated this gentle recipe to provide a softening cleanse, with a full and stable lather. Our oils were infused with handpicked garden calendula flowers and colored with anatto seed and white kaolin clay for a naturally vibrant and fresh yellow color. We added lemon juice to the lye solution to create a natural chelator in order to combat hard water and reduce the risk of oxidation and rancidity. We also included a beautiful and conditioning PCSF (post cook superfat) comprised of coconut oil and mango butter and scented our batch with WSP's Meyer Lemon for a lasting and revitalizing citrus fragrance.

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Creamy Recipe: Follow the directions provided in The Ultimate Guide to Hot Process Soap and the recipe below to create your very own Creamy Lemon Calendula soap. You may use Low Temperature Hot Process or High Temperature Hot Process. Adjust the water concentration and additives for increased fluidity or leave as recommended for harder bar after unmolding.

Oils: The following oils are to be melted and added to your crockpot:

  • Castor Oil- 3.84 ounces (108.9g)

  • Coconut Oil, 76 deg- 6.4 ounces (181.4g)

  • Mango Seed Butter- 4.48 ounces (127g)

  • Olive Oil- 1.92 ounces (54.4g)

  • Stearic Acid- 2.56 ounces (72.6g)

  • Tallow Beef- 12.8 ounces (362.9g)

  • Total Oil Weight- 32 ounces (907.2g)

Superfat: The PCSF or Post-Cook Superfat should be added after the saponification process is complete. We include a 6% PCSF or 1.92 ounces (54.4g). Our standard recipe uses olive oil, but for this particular batch we used coconut oil and mango butter. You may select the PCSF of your choice. Be sure to take the fatty acid composition into consideration to reduce the risk of oxidation and rancidity.

Lye Solution Dual-lye solution used for increased rate of lather formation and increased soap solubility. [You can also use 100% NaOH instead at 4.58 ounces (129.8 g)]

  • Water Weight- 8.96 ounces (254 g)

  • NaOH Weight- 4.44 ounces (125.9 g)

  • KOH Weight- 0.21 ounces at 90% purity (6.1 g)

  • Total Lye Weight- 4.66 ounces (132 g)

Optional Additives:

(%TOC is percentage based on Total Oil Concentration, not including PCSF)

  • Tussah Silk in lye solution

  • 1% TOC citric acid in lye solution (or replace 20% water with lemon juice)

  • 4% TOC sugar in lye solution

  • 3% TOC Sodium lactate after trace

  • 0.5% TOC glycerin, 1% TOC cetyl alcohol, and kaolin clay melted together and mixed in with the 6% PCSF

Natural Colorants:

  • Annatto seed mixed with sugar water

  • White Kaolin Clay

  • Oils infused with and soap topped with calendula


  • WSP Meyer Lemon

  • You may also use essential oils. We suggest a combination of Lemongrass and Bergamot (4:1 ratio)

Beautiful Lemon Calendula Hot Process Soap by The Ultimate Guide to Hot Process Soap


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