It is possible that a glass of white wine will burn to the bottom when lit. Liquor contains a large amount of alcohol, which has good dissolvability, can dissolve many substances and has high combustibility. Therefore, when a glass of white wine is lit, the alcohol will be burned, which will drive the alcohol at the bottom to burn.

However, it doesn't take a long time for a glass of white wine to burn to the bottom after it is ignited. This is because the alcohol content in liquor is not very high, and the burning speed of alcohol is not very fast. Therefore, a glass of white wine may have a burning flame after it is ignited, but with the consumption of alcohol, the burning flame will gradually disappear.

Of course, if other flammable substances, such as grease, are added to a glass of white wine, the possibility that the white wine will burn to the bottom after it is ignited will increase. Therefore, attention should be paid to safety when using liquor to avoid accidents.