Berliner Weisse is a top-fermented, bottle conditioned wheat beer made with both traditional warm-fermenting yeasts and lactobacillus culture. They have a rapidly vanishing head and a clear, pale golden straw-coloured appearance. The taste is refreshing, tart, sour and acidic, with a lemony-citric fruit sharpness and almost no hop bitterness. Tourists in Berlin will often order on as a "Berliner Weisse mit Schuss: Himbeere" or "Berliner Weisse mit Schuss: Waldmeister". These are syrups that are added to make the sourness more palatable. Himbeere is raspberry (red) and Waldmeister is woodruff (green).