Perle is a German hop cultivar that continues to gain popularity here in the US. Perle was initially brew from a Northern Brewer parent and certainly has Northern Brewer's characteristic green, minty notes along with a more noble, earthy/spicy quality reminiscent of traditional Noble hops like Hallertau or Saaz.
At 7% to 9%AA Perle is best used in a flavor/aroma role at the end of a boil. However, Perle also makes a great stand-alone hop in lower alpha beers like a light lager or an American Wheat. Another use is an interesting hop in place of some traditional UK hops - a great example being Sierra Nevada Pale Ale.
Alpha Acids: Medium Alpha
Hop Aroma: Pleasant Hoppiness
Hop Usage: Bittering and Aroma
General Trade Perception: A hop with German type aroma properties combines with moderate bittering potential. A dual purpose hop. Popular with craft-brewers.
Possible Substitutions: German Perle, German and US Northern Brewer
Typical Beer Styles: Pale Ale, Porter, Stout, Lager, Weizen, Alt, Barley Wine, Kölsch
Additional Information: Excellent storagability.
Pedigree: Bred in Germany from the English Northern Brewer variety.
Yield: 1300 – 1800 kg./ha. or 1160 – 1600 lb./ac.
Growth Habit: Good – Does not like hot weather
Disease/Pest Susceptibility: Mainly tolerant to Prunus necrotic ring-spot virus infection. Fairly resistant to downy mildew.
Cone-Structure: Fairly loose, medium-long
Lupulin: Plentiful, fairly dark yellow
Aroma: Floral and slightly spicy
Alpha Acids: 7 – 9.5% w/w
Beta Acids: 4 – 5% w/w
Co-Humulone: 27 – 32% of alpha acids
Storageability: 80 – 85% alpha acids remaining after 6 months storage at 20º C
Total Oil: 0.7 – 0.9 mls/100 grams
Myrcene: 45 – 55% of whole oil
Humulene: 28 – 33% of whole oil
Caryophyllene: 10 -12% of whole oil
Farnesene: <1% of whole oil