Orange peel is added to beers for flavor and its aromatic qualities, generally in the last few minutes of wort boiling and should be strained out before bottling. Some brewers add coriander and some other flavoring to the primary fermentation vessel to get a stronger flavor.
Bitter Orange Peel is used to flavor Belgian white ales to give them a citrus & herbal notes in both the flavor and aroma.
Bitter Orange peel is thick, rough, and generally is green, yellow, or gray colors. The flesh of the orange is dry and very bitter. The peel, which is used in brewing beer is less bitter, has a mild orange flavor. Bitter orange gives beers a citrusy and herbal flavor and aroma.
Bitter orange is generally added to boiling wort during the last 20 minutes of cooking. The amount varies by the style of beer being brewed from about 0.3 oz to 1 oz of dried bitter orange peel per 5 gallons. A Belgium Ale would use the low end of this range while a stronger holiday beer may use more.
Orange peel often used in combination with coriander and cardamom in Belgium Witbier, or white beers.
Possible uses include: Belgian or specialty beers, liqueur flavorings, or soda flavorings.