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Imperial Yeast | A09 Pub Ale | Beer Yeast | Double Pitch | 200 Billion Cells

    Description

    • A09 is a beloved and highly flocculent British ale strain. Well suited for a variety of beer styles
    • Produces high levels of esters, making it an excellent choice for when balance between malt and yeast derived esters is necessary
    • Double pitch size with a minimum of 200 billion cells—twice the size of the standard yeast pitch
    • Imperial Yeast is a group of hard-working, fermentation fanatics who provide the brewing industry with the highest quality, most effective yeast possible

    A09 Pub is a highly sought after strain that home brewers swear by due to is ability to achieve brilliantly bright ales in a short amount of time. Because Pub is extremely flocculent it will tear through fermentation and drop out of your beer quickly. This strain will produce higher levels of esters than most ale strains. A sufficient diacetyl rest is highly recommended when using A09 Pub.

    Attenuation: 69-74%
    Flocculation: Very High
    Alcohol Tolerance: 10% ABV
    Optimum Fermentation Temp: 64-70°F
    Cell Count: 200 Billion
    Similar Strains: WLP002, WY1968

    Please Note: For best results we Always recommend ordering an Ice Pack with your liquid yeast. Ice Packs can be found below in the "You might Also Need" section.

    Please Note: When choosing an ice pack option beware that the liquid yeast will not arrive cold even when shipped together. Ice packs and insulated mailing options are designed to keep the yeast colder for longer during shipment, but they will not ensure that your yeast arrives cold. We will not replace liquid yeast that arrives warm. During warmer months we strongly recommend you choose dry yeast.

    Imperial Yeast | A09 Pub Ale | Beer Yeast | Double Pitch | 200 Billion Cells

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      SKU: IYA09

      $14.29

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        Prop 65 Warning WARNING : This product can expose you to chemicals including Ethanol, which is/are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

        Description

        • A09 is a beloved and highly flocculent British ale strain. Well suited for a variety of beer styles
        • Produces high levels of esters, making it an excellent choice for when balance between malt and yeast derived esters is necessary
        • Double pitch size with a minimum of 200 billion cells—twice the size of the standard yeast pitch
        • Imperial Yeast is a group of hard-working, fermentation fanatics who provide the brewing industry with the highest quality, most effective yeast possible

        A09 Pub is a highly sought after strain that home brewers swear by due to is ability to achieve brilliantly bright ales in a short amount of time. Because Pub is extremely flocculent it will tear through fermentation and drop out of your beer quickly. This strain will produce higher levels of esters than most ale strains. A sufficient diacetyl rest is highly recommended when using A09 Pub.

        Attenuation: 69-74%
        Flocculation: Very High
        Alcohol Tolerance: 10% ABV
        Optimum Fermentation Temp: 64-70°F
        Cell Count: 200 Billion
        Similar Strains: WLP002, WY1968

        Please Note: For best results we Always recommend ordering an Ice Pack with your liquid yeast. Ice Packs can be found below in the "You might Also Need" section.

        Please Note: When choosing an ice pack option beware that the liquid yeast will not arrive cold even when shipped together. Ice packs and insulated mailing options are designed to keep the yeast colder for longer during shipment, but they will not ensure that your yeast arrives cold. We will not replace liquid yeast that arrives warm. During warmer months we strongly recommend you choose dry yeast.

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        Shipping Weight: 0.4 lb
        • 5 stars: 14 (70%)
        • 4 stars: 4 (20%)
        • 3 stars: 2 (10%)
        • 2 stars: 0 (0%)
        • 1 star: 0 (0%)
        W
        William

        I used this yeast in the More Beer Oatmeal Stout recipe and it’s delicious! One thing I like about this yeast (besides the flavor) is that it comes with enough viable yeast cells that I don’t need to make a starter (unless you have a high gravity beer) and you pitch it directly into your cooled wort without needing to smack a pack and you don’t have to worry about taking it out of the refrigerator ahead of as you pitch it cold.

        W
        William S.

        I used this yeast in the More Beer Oatmeal Stout recipe and it’s delicious! One thing I like about this yeast (besides the flavor) is that it comes with enough viable yeast cells that I don’t need to make a starter (unless you have a high gravity beer) and you pitch it directly into your cooled wort without needing to smack a pack and you don’t have to worry about taking it out of the refrigerator ahead of as you pitch it cold.

        B
        Bryce
        Great for those malty brown ales

        Used this yeast for a brown ale and it exceeded my expectations.

        B
        Bryce T.
        Great for those malty brown ales

        Used this yeast for a brown ale and it exceeded my expectations.

        D
        DANIEL J

        Worked well as always

        D
        DANIEL J E.

        Worked well as always

        E
        Eric
        Not my bag

        The yeast fermented fast and finished nice but the flavor it imparted is not what I was looking for. I did a split batch with my latest creation of an American porter with the other one getting Flagship. The flavor in the Pub fermented batch has a sharp black licorice flavor that I do not prefer over the Flagship clean and crisp flavored batch. I gave it 3 stars because of only the flavor I do not like black licorice type sharp twang it has lol but the yeast performed great as it is listed so take this review as a personal flavor review. The beer was fermented at 62°F and raised to 70°F after 4 days where it was completed before cold crashing after the seventh day.

        E
        Eric H.
        Not my bag

        The yeast fermented fast and finished nice but, the flavor it imparted is not what I was looking for. I did a split batch with my latest creation of an American porter with the other one getting Flagship. The flavor in the Pub fermented batch has a sharp black licorice flavor that I do not prefer over the Flagship clean and crisp flavored batch. I gave it 3 stars because of only the flavor, I do not like black licorice type sharp twang it has lol but the yeast performed great as it is listed so take this review as a personal flavor review. The beer was fermented at 62°F and raised to 70°F after 4 days where it was completed before cold crashing after the seventh day.

        P
        P
        Crazy Fermentation

        I ordered this yeast and had it shipped with two ice packs and in it's own protective package. When it arrived the ice packs had gone warm and the yeast \was pretty warm as well which worried me. I put it in the refrig for about 10 days and finally brwed my Imperial Porter. I made a double yeast starter for this yeast in case cells had died in shipment. I oxygenated my wort and added the yeast. It began fermenting 2 hours later and was one of the wildest fermentations I've ever had. Brewed it two days ago and still going like mad. Looking forward to the end product. PW

        P
        P W.
        Crazy Fermentation

        I ordered this yeast and had it shipped with two ice packs and in it's own protective package. When it arrived, the ice packs had gone warm and the yeast \was pretty warm as well, which worried me. I put it in the refrig for about 10 days and finally brwed my Imperial Porter. I made a double yeast starter for this yeast in case cells had died in shipment. I oxygenated my wort and added the yeast. It began fermenting 2 hours later and was one of the wildest fermentations I've ever had. Brewed it two days ago and still going like mad. Looking forward to the end product.PW

        B
        Bruce
        Excellent first time experience

        First time to use Imperial yeast and it took off in less than 8 hours and finished in 4 days. Will use again!

        B
        Bruce C.
        Excellent first time experience

        First time to use Imperial yeast and it took off in less than 8 hours and finished in 4 days. Will use again!

        R
        Richard
        Good amount

        Required a smaller starter than the others. Fermentation started quickly once pitched.

        R
        Richard S.
        Good amount

        Required a smaller starter than the others. Fermentation started quickly once pitched.

        M
        Michael
        Love It

        Use in Low Gravity English ales works great. Fast ferment and easy to harvest.

        M
        Michael F.
        Love It

        Use in Low Gravity English ales works great. Fast ferment and easy to harvest.

        K
        Klaus D
        A Real Workhorse

        I have used this yeast at least three times. It is very aggressive, takes off like a race horse, and finishes very quickly. For every beer with this strain, I have done a diacetyl rest, raising the temperature 3-4?_F to take care of the very junior-young-green flavors. This always did the trick.I would also agree with the other reviewer about the can. The yeast does stick in the can. The best bet is to warm the can up a bit (I know, I think it says pitch cold), give it a good shake, and the pour. Those of you who have had experience with the older White Labs tubes will know how yeast can get a little caked if it is sitting long. I think this yeast is similar, particularly if it has been sitting idle for a few months.

        K
        Klaus D
        A Real Workhorse

        I have used this yeast at least three times. It is very aggressive takes off like a race horse and finishes very quickly. For every beer with this strain I have done a diacetyl rest raising the temperature 3-4?_F to take care of the very junior-young-green flavors. This always did the trick. I would also agree with the other reviewer about the can. The yeast does stick in the can. The best bet is to warm the can up a bit (I know I think it says pitch cold) give it a good shake and the pour. Those of you who have had experience with the older White Labs tubes will know how yeast can get a little caked if it is sitting long. I think this yeast is similar particularly if it has been sitting idle for a few months.

        S
        Scott H.
        Worked as described

        I have a Wee Heavy, finishing in secondary, that I used this yeast for. Probably not a good style choice for this beer but so be it. The OG of 1.098 came out of primary at 1.025 after 6 days so not a bad performance so far. It flocs very well and racked almost perfectly clear.Only bad mark I can say was when I opened it, cold and well shaken, the yeast was caked and stuck on the cans bottom and had to be scooped out with my finger. Worried me a bit but my hands had been wet with Star San and no evidence of buggies so far.I am doing an ESB with it next, and will update you as to the Wee Heavy's progress and the ESB.

        S
        Scott H.
        Worked as described

        I have a Wee Heavy finishing in secondary that I used this yeast for. Probably not a good style choice for this beer but so be it. The OG of 1.098 came out of primary at 1.025 after 6 days so not a bad performance so far. It flocs very well and racked almost perfectly clear. Only bad mark I can say was when I opened it cold and well shaken the yeast was caked and stuck on the cans bottom and had to be scooped out with my finger. Worried me a bit but my hands had been wet with Star San and no evidence of buggies so far. I am doing an ESB with it next and will update you as to the Wee Heavy's progress and the ESB.

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