Coffee or tea can stay warm in a metal thermos for about 6-12 hours, depending on the quality of the thermos and the initial temperature of the beverage. A well-insulated metal thermos can keep coffee or tea hot for the longer end of that range, while a lower-quality thermos may only keep it warm for a few hours. It's important to preheat the thermos with hot water before adding the coffee or tea to help it stay warm for longer. **

Yes, there are coin-operated vending machines in Flensburg. These machines can be found in various locations such as train stations, shopping centers, and public buildings. They offer a variety of products including snacks, drinks, and even everyday essentials like toiletries and phone chargers. Customers can use coins to make purchases from these vending machines. **

We use a metal spoon to stir tea and coffee because metal is a good conductor of heat. When we stir hot tea or coffee with a metal spoon, the heat from the liquid is quickly transferred to the metal spoon, helping to cool down the beverage faster. Additionally, metal spoons are durable and do not absorb flavors or odors, making them ideal for stirring hot drinks without affecting the taste. **

A tea service and a coffee service are sets of matching tableware used for serving tea or coffee. They typically include a teapot or coffee pot, cups and saucers, creamer, sugar bowl, and sometimes a serving tray. These sets are often made of fine china, porcelain, or silver, and are used for formal or special occasions when serving tea or coffee to guests. The design and style of the service can vary depending on the cultural and historical influences. **

A good tea service set typically includes a teapot, tea cups, saucers, and a serving tray. The set should be made of high-quality, durable materials such as porcelain, ceramic, or glass. It should also have an elegant and timeless design that complements any table setting. Additionally, a good tea service set may include additional accessories such as a sugar bowl, creamer, and tea strainer to enhance the overall tea-drinking experience. **

Self-made from metal refers to something that has been created or constructed using metal materials by an individual or group, rather than being mass-produced in a factory. This could include handcrafted metal sculptures, custom-made metal furniture, or artisanal metalwork such as jewelry or decorative items. The term "self-made" implies a sense of craftsmanship, creativity, and individuality in the production of the metal object. **

No, mate tea is not green tea. Mate tea is made from the leaves of the yerba mate plant, which is native to South America. Green tea, on the other hand, is made from the leaves of the Camellia sinensis plant. While both mate tea and green tea have health benefits and contain caffeine, they come from different plants and have distinct flavors. **

It ultimately depends on personal preference and what you are looking to achieve. Fennel tea is known for its digestive benefits and can help with bloating and indigestion. On the other hand, chamomile tea is known for its calming and relaxing properties, making it a great choice for promoting better sleep and reducing stress and anxiety. If you are looking for digestive support, fennel tea may be the better choice, while if you are looking to relax and unwind, chamomile tea may be the better option. **