Tettnang hops are a classic German hop variety that has been cultivated for centuries. They are named after the Tettnang region in the state of Baden-Württemberg, Germany, where they have a long history of cultivation.

Here are some key features of Tettnang hops:

1. Flavor Profile: Tettnang hops contribute a mild and noble flavor profile characterized by herbal, floral, and spicy notes. The flavors are often described as earthy and slightly sweet. Tettnang hops provide a subtle and refined hop character to beers.
2. Aroma: The aroma of Tettnang hops is delicate and pleasant, with floral and herbal notes. The aromatic profile is not as bold or citrusy as some modern hop varieties, making Tettnang a classic choice for traditional and lighter beer styles.
3. Usage: Tettnang hops are primarily used for aroma additions in brewing. They are commonly added during the late boil, whirlpool, and dry hopping stages to maximize their aromatic contributions. While they can provide some bitterness, their main value is in the aroma they bring to beer.
4. Alpha Acids: Tettnang hops have a low to moderate alpha acids content, typically ranging from around 3% to 6%. This makes them suitable for aroma additions, and they are not as high in alpha acids as some other hop varieties used primarily for bittering.
5. Beer Styles: Tettnang hops are classic choices for German-style lagers, particularly Pilsners and Helles, where their mild and noble characteristics complement the clean malt profile. They are also used in various traditional European styles, including Belgian ales and wheat beers.
6. Origin: Tettnang hops originated in the Tettnang region of Germany, and they are part of the noble hop family. The Tettnang hop-growing region has a reputation for producing high-quality hops.
7. Varieties: Tettnang hops have several regional varieties, including Tettnanger, Tettnanger Spalt, and Tettnanger Tettnang. Each variety may have slightly different flavor and aroma characteristics.

Brewers appreciate Tettnang hops for their ability to add a classic and refined hop character to beers. They are particularly valued in traditional and lighter beer styles where a subtle and noble hop presence is desired.