What is the name of the container for scalding white wine? Where can I buy it?

It's called a hip flask. There are many kinds of flagons. A hip flask is double-layered, and the liner can be taken out. When you want to warm the wine, take out the inner container. After pouring a proper amount of hot water into the kettle, put the inner container into the hot water, so that the wine can be warmed for a longer time. My hip flask can warm two glasses of wine at a time. There are country people who can warm wine in the porcelain shop. To tell the truth, warm wine doesn't need special utensils. When I want to drink hot wine, I will pour the wine into a transparent glass, put the soup in hot water, or put it in the microwave oven 1 minute or so.