The purpose of adding sugar to coffee is to ease the bitterness, and depending on the amount of sugar, it will create a completely different flavor.
Powdered sugar: an is a kind of refined sugar, which has no special taste and is easy to dissolve. It is usually easy to use in a small package of 5-8 grams. The price is a little higher than ordinary sugar.
Sugar cube: add water to the refined sugar and then solidify it into a lump. The cube sugar is easy to preserve and easy to dissolve.
White granulated sugar: White granulated sugar is also a refined sugar, it is coarse crystal solid, white color. Most of the products are packed in 8g small packages for each use.
Black sugar: this is a kind of brown sugar, a bit scorched, commonly used in the preparation of Irish coffee.
Rock sugar: transparent and crystalline, light sweetness and insoluble. It is usually ground into fine grains for use in drinks such as coffee or flavored tea.
Coffee sugar (brown sugar): sugar used specifically for coffee, brown granulated sugar or cube sugar. Coffee sugar stays sweeter on the tongue than other sugars.
