- Gomme syrup (or gum syrup; gomme is French for "gum") is an ingredient commonly used in mixed drinks. It is also commonly used as a sweetener for iced coffee in Japan. Like bar syrups, it is a sugar and water mixture, but has an added ingredient of gum arabic which acts as an emulsifier. Gomme syrup is made with the highest percentage of sugar to water possible, while the gum arabic prevents the sugar from crystallizing and adds a smooth texture.
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