Step 1 - Supplies That You Will Need
1) A cereal size bowl for each coaster
2) Bottle of Hydrogen Peroxide Solution 3%

Step 2 - Cleaning Solutions and Procedure
Begin by placing 1 coaster face up in a bowl and add hydrogen peroxide until coaster is covered. Allow your coaster to soak for 1 hour.

Step 3 - Rinsing and Drying the Coasters
Pour out the hydrogen peroxide from the bowl. Rinse each coaster under warm running tap water with a soft sponge and then towel off any excess water. Place coasters in an upright position to air dry overnight before using again.

Stain Cleaning Procedure Can Be Repeated As Often As Needed.

What is 3% Hydrogen Peroxide Solution?
Hydrogen Peroxide Solution 3% is a safe and inexpensive product that contains 3% hydrogen Peroxide and 97% purified water. It is a very common household antiseptic product that can be purchased at your local grocery store.