1 teaspoon of borax
½ teaspoon washing soda
Your essential oils of choice
3 tablespoons of vinegar*
Fill halfway with very hot water and shake until the minerals have completely dissolved.
Add ½ teaspoon castile liquid soap** and shake gently until combined.
Top up with water.
* If using on natural stone omit vinegar
** Follow order, if castile liquid soap is added to straight vinegar it will curdle.