Schnell Brewery (1864–1872), owned by who, was located in the Dupont Circle neighborhood, the Schnell brewery produced Weißbier, a wheat beer, in small quantities during its operation, a wheat beer,  usually top-fermented, which is brewed with a large proportion of wheat relative to the amount of malted barley?
Wheat beer Wheat beer is a beer, usually top-fermented, which is brewed with a large proportion of wheat relative to the amount of malted barley. The two main varieties are Weissbier and Witbier; minor types include Lambic, Berliner Weisse and Gose.
Barm Barm is the foam, or scum, formed on the top of liquor – fermented alcoholic beverages such as beer or wine, or feedstock for hard liquor or industrial ethanol distillation – when fermenting. It was used to leaven bread, or set up fermentation in a new batch of liquor. Barm, as a leaven, has also been made from ground millet combined with must out of wine-tubs and is sometimes used in English baking as a synonym for a natural leaven. Various cultures derived from barm, usually "Saccharomyces cerevisiae", became ancestral to most forms of brewer's yeast and baker's yeast currently on the market.