Grapefruit CoasterStone Coaster Set. CoasterStone is the original absorbent stone coaster! In business since 1983, they pride themselves as the most sophisticated and highest quality absorbent coaster on the market. CoasterStone is produced in the USA in Carmel, IN.

Set of 4. Each 4.25” Round.

To clean your coaster or trivet, prepare a solution of 3 parts hot water (not boiling) and 1 part bleach. Soak the coasters overnight. Rinse, lay flat with the cork-side up and allow to air dry.  This process may be repeated to remove stubborn stains such as coffee, wine and cola.