Nettle Soap Recipe
It doesn't get much more natural than making your own soap and using plants to colour them! Nettle powder is a traditional way to colour soap and creates a dark, natural green coloured soap.
We're using a blend of lavender, peppermint and rosemary essential oils. This creates a herbal scented soap to match the green colour.
Nettle powder has its own distinctive scent, however when we added essential oils to the soap we couldn't smell the nettles.
- Weighing scales
- Digital thermometer
- Heatproof bowl
- Plastic measuring jugs, ideally 2x 1L and 1x 2L
- Silicone spatula
- Soap mould or DIY alternative ( Explore our range of silicone soap moulds!)
- Stick blender
- Olive oil pomace 400g | 435ml
- Cocoa butter 120g
- Coconut oil 280g
- Water 240ml
- Sodium hydroxide 115g
- Lavender essential oil 12g | 14ml
- Peppermint essential oil 4g | 4ml
- Rosemary essential oil 9g | 10ml
- Nettle powder 15g
1. Mix the sodium hydroxide solution
- Put your gloves and goggles on, and open the window
- Weigh the water
- Weigh the sodium hydroxide in a separate jug
- Add the sodium hydroxide to the water
- Stir until dissolved
- Leave it somewhere safe to cool, it will be hot!
2. Weigh and heat the oils
- Weigh the cocoa butter, coconut oil and olive oil into a heatproof bowl
- Melt over a pan of boiling water, or using short bursts in the microwave.
- Stir regularly
- Once melted, leave to cool
3. Weigh the essential oils and nettle powder
- Weigh your essential oils
- Weigh your nettle powder
- Mix well until combined
4. Test the temperatures
- Test the temperature of the sodium hydroxide solution. It should be between 25C and 40C
- Leave it to cool if necessary, but don't reheat it if it's too cool.
- Test the temperature of the oil mixture. It should be between 35C and 40C
- Leave it to cool or reheat if necessary
5. Blend until trace
- Add the sodium hydroxide solution to your oil mixture
- Using a stick blender, stir and blend in short pulses
- Keep checking how the soap batter thickens
- Test for trace by dripping soap batter across the jug of mixture, if it sits on top for a moment the soap has reached trace.
- Stop blending once the soap has reached trace
- Add your essential oils and nettle powder mixture
- Blend in short bursts until combined
6. Pour into moulds
- Pour the soap mixture into a mould
- Tap the mould on the surface to free any air bubbles
- Cover with greaseproof paper
- Insulate with a towel
- Leave on a flat surface for 48 hours
7. Cut and cure
- Unmould the soap and cut into bars
- Spread out with an air gap between the bars
- Leave to cure for 4-6 weeks
Now that you've learned how to make nettle soap, why not continue your soap making journey?
- Interested in hot process soap making? Try our hot process olive oil soap recipe
- Want more cold process soap recipes? Try our aloe vera juice cold process soap recipe
- Want to learn more about essential oils? Read about essential oils for soap making
Did you try making your own nettle soap? Comment below and let us know.