The Graf Lantz Bierfilzl Felt Coasters are pretty tough, mainly because they're made from 100% Merino wool, which is both strong and naturally absorbent. According to the manufacturer's product care instructions, you can pop them in the dishwasher, or if you're more hands-on, you can dry clean, hand wash, or even iron them.

There are plenty of cleaning options, but handling them with a bit of care is a good idea if you want them to last. From what we've found, a gentle wash cycle or hand washing might be better than throwing them in the dishwasher every time. Some folks have noticed that frequent dishwasher use can affect the felt's texture and look, especially if they get stained by drinks like coffee or tea.

The coasters are designed to soak up spills well, but if they're constantly wet without proper drying, they might develop mold or not absorb as well.

One great thing about the Merino wool is that it handles moisture really well, soaking up spills without getting too soggy and keeping surfaces drier. But, keeping an eye on them for any mold or signs of wear during cleaning is essential to make sure they stay in good shape.

So, to keep these coasters looking good and working well, a little bit of regular care goes a long way. Overall, the Graf Lantz Bierfilzl Felt Coasters are generally durable and have flexible cleaning options, but a little TLC will help them keep their nice look and feel.

Following some simple maintenance tips can let you enjoy their practicality and style for quite a while.