What is a Coaster? What is it used for and where?

Coaster (Coaster) — is a small, usually flat object used to protect surfaces from stains or damage that can be caused by drink glasses. They are made from a variety of materials such as paper, wood, ceramic, metal, cork, or plastic, and are often decorated with decorative designs or logos (advertising). Coasters can come in various shapes and sizes, but the most common are round or square.

These coasters not only protect furniture from temperature effects and moisture but can also serve as a decorative element on the table or become part of a collection. In bars and restaurants, they are often used to advertise drink brands. That is, beer coasters usually have the logo / advertisement of the beer brand in bars. The concept of the coaster as a drink holder appeared in the 19th century in Germany. The idea was to create a practical item to protect surfaces from stains and damage that drinkware could leave.

Beer mat is a German term for beer coasters, which is synonymous with the word "coaster." The inventor of the specific name "coaster" is not documented, as the concept gradually evolved and became popular in many cultures with various modifications and materials. The etymology of the word beer mat suggests that it was most likely originally a lid for a beer mug.

Tegestology is a hobby that involves collecting coasters, drink coasters. Collectors, known as tegestologists, gather coasters from various establishments, countries, and events, often focusing on the uniqueness or rarity of the items. This hobby can also include studying history and culture through the advertising and design of coasters. Collections may reflect the personal interests of the collector or follow specific themes, such as beer coasters or coasters from certain geographical regions. Currently, I do not have a beer mat (coaster for a beer glass) on hand. To illustrate a decorative coaster, I added a photo of woven and wooden coasters that I use for coffee.