Sertodo Copper Napa Cup Coasters

Yes. While they arrive with a brilliant shine, they will naturally develop a rich, darkened patina as they are exposed to air and use. You can choose to polish them to maintain their original luster or let them age gracefully for a more rustic look.

Absolutely. Because they are crafted from heavy-gauge, solid copper, they are durable enough for outdoor dining areas and patio use. They will not rust, though they may patina faster when exposed to the elements.

These coasters are not dishwasher safe. To clean, simply wipe them down with a soft, damp cloth after use. If you want to restore their original shine, you can use a standard copper polish or a mixture of lemon and salt.

Each coaster measures 4.5 inches in diameter, which provides a generous surface area for most standard glassware, coffee mugs, and even small decorative items like candles or succulents.

No, these are solid, hand-hammered copper pieces without a synthetic backing. While they are substantial and stable, you may want to be mindful if placing them on very slick, polished glass surfaces.