Be careful! Sodium Coco Sulfate is a (natural) product, potentially irritating to the respiratory tract as a powder, and the skin when heated. Do not hesitate to wear a mask and gloves if necessary.
Pour the Sodium Coco Sulfate into the water bath, add the water and mix.
Crush the mixture with the pestle over low heat.
Once the mixture is homogeneous and all the little balls are crushed (about 10 minutes) remove from the heat.
Add the bicarbonate of soda and mix again. (I do it by hand)
Form a large ball and transfer to the container.
Pack well and flatten.
It’s ready to go!
Wet a tawashi or a cloth, and rub it on the dish-washing cake, it foams!