When I bought a new table recently, the water droplets on the glasses and PET bottles were easily noticeable, and I was in trouble. So, I bought "Diatomaceous earth coaster" from Hiro Corporation, which has become a hot topic on TV.
Diatomaceous earth is fossilized and deposited shells of phytoplankton and algae. There are invisible fine holes on the surface, and it has high moisture absorption and desorption. Recently, you often see bath mats made of diatomaceous earth.
The square coaster I bought is 9 cm on a side and 9 mm thick. It weighed about 80g (2.82oz). In addition to this, there is also a round type, and the attractive price is 380 yen (excluding tax) per sheet, which is easy to match for the number of people.
When you spray water with a mist, the darkly dyed area becomes dry and restored.
Condensation generated on cold glasses is also absorbed. It doesn't dry as quickly as a spray bottle, but the water doesn't penetrate the other side so the table doesn't get wet. If you leave it, it will dry naturally, so no special care is required. It seems that mold is less likely to occur if it is dried in the shade once in a while.
The products are on sale at the general merchandise shop "Francfranc". Some of the colors were sold out at the store I visited, but it seems that they are in stock at the store's online shop. If you often drink cold drinks or are worried about stains on the table, please use it!