- 100 grams Salt
- 300 grams Sodium Carbonate (Washing soda or Soda Ash)
- 250 grams Citric Acid
- 200 grams Borax
- 30 drops lemon essential oil
- Silicone Ice Cube Tray
Combine all the ingredients well
Pack firmly into silicon tray.
Allow to harden for around 48 hours (until dry)
Turn out of tray and store in an air tight container.