Step 1

Fill the glass jar about ¼ of the way full with Himalayan salt, Celtic sea salt, or Real Salt, or a mixture of the three.

Step 2

Add filtered water to fill the jar, leaving about an inch at the top.

Step 3

Put on the plastic lid and shake the jar gently.

Step 4

Leave on the counter overnight to let the salt dissolve.

Step 5

If there is still some salt on the bottom of the jar the next day, the water has absorbed the maximum amount of salt, and the sole is ready to use.

Step 6

If all of the salt is absorbed, add more salt and continue doing so each day until some remains on the bottom. This means the water is fully saturated with salt.