In fact, the taste of iced American coffee is bitter, because American coffee is actually deliberately concentrated with water, without sugar or milk. Compared with other fancy coffee, the taste is naturally bitter, so many people don't particularly like it when drinking it, so they think iced American coffee is particularly bitter and uncomfortable to drink, but it is precisely because its bitterness can stimulate the brain to refresh, so office workers especially like it.
Secondly, in addition to refreshing, iced American style has the effect of promoting digestion and eliminating edema. People with indigestion can choose a glass of iced American style. If you really think it's too bitter to ice the American style, you can choose to add milk and sugar, or switch to another coffee with sugar and milk.