What is the difference between club soda and seltzer water?

You'd think that when dealing with something as simple and straightforward as water, there couldn't be any confusion. Water is water, right? Confusingly enough, this isn't so. read more

Tonic water is also—wait for it—carbonated water. The big difference is the addition of quinine, an ingredient found in the bark of the South American cinchona tree. Quinine was originally used as malaria medicine; according to legend, British soldiers started mixing the bitter stuff with soda water, sugar, and gin, to make it go down easier. read more

Seltzer and club soda have both been artificially produced by passing pressurized carbon dioxide through water, but while seltzer contains no added ingredients or flavorings, club soda contains additives such as table salt, sodium bicarbonate, or potassium bicarbonate to add a slightly salty flavor. read more