Aroma: Light to moderate spicy rye aroma intermingled with light to moderate weizen yeast aromatics (spicy clove and fruity 58 BJCP Beer Style Guidelines – 2015 Edition esters, either banana or citrus). Light spicy, floral, or herbal hops are acceptable.
Appearance: Light coppery-orange to very dark reddish or coppery-brown color. Large creamy off-white to tan head, quite dense and persistent (often thick and rocky). Cloudy, hazy appearance.
Flavor: Grainy, moderately-low to moderately-strong spicy rye flavor, often having a hearty flavor reminiscent of rye or pumpernickel bread. Medium to medium-low bitterness allows an initial malt sweetness (sometimes with a bit of caramel) to be tasted before yeast and rye character takes over. Low to moderate weizen yeast character (banana, clove), although the balance can vary. Medium-dry, grainy finish with a lightly bitter (from rye) aftertaste. Low to moderate spicy, herbal, or floral hop flavor acceptable, and can persist into aftertaste.
Mouthfeel: Medium to medium-full body. High carbonation. Moderately creamy
Impression: A dunkelweizen made with rye rather than wheat, but with a greater body and light finishing hops.
Comments: Rye is a huskless grain and is difficult to mash, often resulting in a gummy mash texture that is prone to sticking. Rye has been characterized as having the most assertive flavor of all cereal grains. It is inappropriate to add caraway seeds to a roggenbier (as some American brewers do); the rye character is traditionally from the rye grain only.
Ingredients: Malted rye typically constitutes 50% or greater of the grist (some versions have 60-65% rye). Remainder of grist can include pale malt, Munich malt, wheat malt, crystal malt and/or small amounts of debittered dark malts for color adjustment. Weizen yeast provides distinctive banana esters and clove phenols. Light usage of Saazer-type hops in bitterness, flavor and aroma. Lower fermentation temperatures accentuate the clove character by suppressing ester formation. Decoction mash traditionally used (as with weissbiers).
Commercial Examples: Thurn und Taxis Roggen