and "beautifully roasty" examples of their respective styles. The two offerings have been brewed since the company's first year of operation. Torpedo is an American India Pale Ale, and Kellerweis is a traditional Bavarian hefeweizen. Both were introduced as nationwide offerings in 2009. Seasonals The brewery's current lineup of seasonals include Beer Camp Hoppy Lager, Summerfest Lager, Oktoberfest, and Celebration Ale. Sierra Nevada's Celebration Ale has been brewed as a winter seasonal since 1981. While it has won medals under the IPA category, it has also been described as a hoppy, malty amber ale, as well as a "bigger version" of the company's pale ale. Previous Autumn seasonal Tumbler Brown Ale has been described as a full-bodied, malt-heavy brown ale and is sold for the autumn months. Previous Spring seasonal Ruthless Rye IPA is an IPA brewed with rye and whole-cone hops for the spring, while Summerfest is a pilsner brewed in the Czech tradition. Special release Annual "Special Release" beers produced by Sierra Nevada include Bigfoot Barleywine Style Ale, Hemisphere Harvest Ales and Chico Harvest Estate Ale. Bigfoot is brewed with two types of malt and three differing hops, and tops out at 9.6%ABV. It is a barleywine, but due to alcohol laws in the U.S. it must be marketed as a "barleywine style ale". Only alcohols derived from fruits, not grains, can be marketed as wine. It first won medals at the Great American Beer Festival in 1987. It is generally released January–February of each year. The brewery releases both a Northern and Southern Hemisphere Harvest "wet hop" ale. Introduced in 1996 as Harvest Ale, Northern Hemisphere utilizes wet (undried) hops from eastern Washington for its "fresh harvest" ale. It was the first fresh-hop ale brewed in the United States. The brewery later introduced Southern Hemisphere which features wet hops from New Zealand. The Chico Estate Harvest Ale is brewed with organic wet hops and barley grown on the brewery's premises. Old Chico Crystal Wheat, a wheat beer, is named in memory of the Chico Brewery which operated in the town during the 19th century. Old Chico brand beers are only distributed in the northern California area around Chico. The "Resilience Butte County Proud IPA" is a limited edition IPA, released to benefit recovery efforts for the Camp Fire, which impacted areas nearby Sierra Nevada's Chico brewery in 2018; about 50 Sierra Nevada employees lost their homes in