Basic Equipment for Soap Making

The basic equipment you actually need to start making soap at home. Scale, blender, safety gear, molds — a friendly checklist for beginners.

Basic tools and ingredients you’ll need to make your own soap bars

  • Safety Gear: gloves, glasses, and long sleeves.

Soap Making Safety Gear

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  • Mixing Bowls preferably stainless steel but plastic PP#5 (polypropylene) can be used too since it’s lye and heat resistant. We use these bowls to mix our lye with water and to mix the lye solution with oils.

Soap Making Mixing bowls

  • Silicone Spatula

Soap Making Silicone Spatula

  • Immersion Blender or Whisk (to reach a trace, the phase when oils and water emulsified, we need to blend the mixture. Using an immersion blender is much faster than using a whisk). Whichever you use, make sure it’s for soap making only and do not use it for food preparations.

Soap Making Immersion Blender or Whisk

  • A Kitchen Pot to melt hard oils and butters

Soap Making Kitchen Pot

  • Digital Scale to measure ingredients.

Soap Making Digital Scale

  • Hard Oils, Butters and Liquid Oils such as coconut oil, cocoa butter, shea butter, olive oil, castor oil, and almond oil. You can make soap with only coconut oil or olive oil, but many recipes will have combinations of two or more types of butters and oils.

Soap Making Hard Oils, Butters

Soap Making Liquid Oils

  • A Thermometer, the use of a thermometer helps us decide which temperature we want to add the lye solution to the oils. If you don’t own one, you can wait for the lye solution and oils to cool down to room temperature before mixing.

Soap Making Thermometer

  • Soap Mold, silicone ones are the most common, but you can definitely use alternative options such as used milk cartons. Just cut the upper part of the carton and clean it, pour the soap mixture into the carton and let it sit in the carton for 24-48 hours, then you can cut the carton to release the soap.

Soap Making Alternative Soap Mold

Soap Making Soap Mold 1

Soap Making Soap Mold 2

Soap Making Soap Mold 3

  • A Cutting Knife - you can use any knife you wish but don’t use that knife for food preparation; make it your soap knife. If you want to shape your soap with a cutting knife, you can use a wave knife.

Soap Making Wave Knife

  • Sodium Hydroxide NaOH (lye) - I prefer small pellets over flakes since I find them easier to dissolve in the water.

Soap Making

Frequently asked questions

What's the minimum equipment I need to start cold-process soap?
A digital scale (0.1g precision), an immersion (stick) blender, a stainless-steel or heat-safe plastic pot for lye solution, a separate pot for oils, two thermometers (or one infrared), silicone spatula, a mold (silicone loaf works), and full PPE: safety goggles, long gloves, long sleeves, ventilation. Total cost: ~80-150 EUR.
Can I reuse kitchen utensils for soap making?
Once used for lye or raw soap batter, dedicate the equipment to soap-making only. Lye degrades aluminum, etches glass with repeated use, and trace residues are unsafe in food. Stainless steel and heat-safe plastic are fine. Mark equipment clearly to avoid mix-ups.
Do I need a digital scale, and how precise does it need to be?
Yes — soap-making is a chemical reaction with strict ratios. A scale accurate to 0.1g is required for batches up to 1kg; 1g precision is fine for larger batches. Volume measurement is unsafe — different oils have different densities and lye is highly weight-sensitive.