WHAT IS IMPERIAL ORGANIC YEAST?
Imperial Organic Yeast is the first manufacturer of certified organic liquid yeast grown in Portland, Oregon.
Each “pitch right” can contains 200 billion cells, the perfect amount for a five gallon batch that can be pitched with no starter! (With possible exceptions for higher gravity batches exceeding an OG of 1.060)
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STRAINS
ALES
A01 House
The best of both worlds, House is clean and allows malt and hops to shine. This strain is extremely versatile and flocculent enough to drop out of the beer quickly. Best used in American IPAs but works well in English style ales. House is clean at cold temperatures with increased esters as fermentation temperatures increase.
Temp: 62-70F, 16-21C // Flocculation: High // Attenuation: 73-75%
A04 Barbarian
Ready to attack your IPA, Barbarian produces stone fruit esters that work great when paired with citrus hops. Barbarian will give you what you need for an exceptionally balanced IPA.
Temp: 62-70F, 16-21C // Flocculation: Medium // Attenuation: 73-74%
A07 Flagship
A craft brewing standard, Flagship is a versatile strain loved for its extremely clean character. This strain performs well at standard ale temperatures, but can be used in the low 60s to produce exceptionally crisp ales. Flocculation is in the middle of the road and will typically require filtration or fining to achieve crystal clear beers.
Temp: 60-72F, 16-22C // Flocculation: Med-low // Attenuation: 73-77%
A09 Pub
Brewers swear by this strain to achieve super bright ales in a short amount of time. One of the most flocculent brewer’s strains around, Pub will rip through fermentation and then drop out of the beer quickly. Pub produces higher levels of esters than most domestic ale strains. Be sure to give beers made with Pub a sufficient diacetyl rest.
Temp:64-70F,18-21C // Flocculation: Very High // Attenuation: 69-74%
A10 Darkness
A beautiful strain for stout, porter, brown, and amber ales. Darkness produces a unique character that matches up perfectly with roasted and caramel malts. This strain is alcohol tolerant, so don’t hesitate to throw high gravity worts its way.
Temp: 62-72F, 17-22C // Flocculation: Medium // Attenuation: 71-75%
A18 Joystick
This strain is a fast mover and can be used at the low end of the ale fermentation spectrum to keep it clean. Joystick is a good choice for big, high alcohol, malty beers but has no issues chomping on a hoppy double IPA.
Temp: 60-70F,16-21C // Flocculation: Med-High// Attenuation: 73-77%
A24 Dry Hop
Dry Hop is a blend of A20 Citrus and A04 Barbarian. When this blend goes to work on your hoppy beer, the hop aroma blows up. The combination of these strains produces amazing aromas of citrus, peach and apricot that will accentuate your IPA, pale ale, and any other hop driven beer.
Temp: 64-74F, 18-23C // Flocculation: medium // Attenuation: 74-78%
BELGIAN ALES
B64 Napoleon
This yeast is an insane wort attenuator. Napoleon will destroy the sugars in your saison and farmhouse beers – even the ones in which most brewer’s strains have no interest. When all is said and done, Napoleon produces very dry, crisp beers with nice citrus aromas. Yeast settling times can be long, usually requiring filtration for bright beers.
Temp: 65-78F, 18-26C // Flocculation: Low // Attenuation: 77-83%
LAGERS
L17 Harvest
This strain combines good flocculation characteristics with low sulfur and low diacetyl. Clean fermentations produce amazing bock, helles, pilsner, dunkles, and just about any other lager style you throw its way.
Temp: 50-60F, 10-16C // Flocculation: Medium // Attenuation: 70-74%