Our coasters are made using a bio-plastic material called PLA (polylactic acid).
Cleaning:
To clean the coaster, simply wipe it with a damp cloth. Avoid abrasive cleaning materials that could scratch the surface.
Hot mugs beware: your coaster likes it chill.
Note* Very hot mugs (freshly boiled tea or coffee) may cause slight warping over time. For best longevity, we recommend using these coasters with warm or cold drinks.