Wyeast | 1099 Whitbread Ale | Beer Yeast | Activator Smack-Pack System™ | 100 Billion Cells

Wyeast | 1099 Whitbread Ale | Beer Yeast | Activator Smack-Pack System™ | 100 Billion Cells

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  • 1099 is a mildly malty and slightly fruity fermentation profile, less tart and dry than 1098 British Ale
  • With good flocculation characteristics, this yeast clears well without filtration
  • Activator Smack-Pack System™ "proofs" the yeast and shortens lag time when it hits your wort
  • When smacked, the Activator™ packet releases sugars and nutrients to initiate the culture's metabolism
  • Wyeast has been a pioneer in craft brewing for over 35 years and is committed to creating the finest fermentation products available
  • Although beneficial, cultures do not need to be activated prior to inoculation

A classic yeast strain from the notorious Whitbread Brewery.  This strain comes from the same brewery as 1098, but is a bit fuller and more malt forward.  Works great in low gravity beers as body, mouthfeel and malt character are all maintained, even with a small grain bill. Try this strain in your next traditional English Ale!

A mildly malty and slightly fruity fermentation profile. It is less tart and dry than Wyeast 1098 British Ale. With good flocculation characteristics, this yeast clears well without filtration. Low fermentation temperatures will produce a clean finish with a very low ester profile.

Attenuation: 68-72%
Flocculation: Medium High
Alcohol Tolerance: 10%
Optimum Fermentation Temp: 64-75°F
Cell Count: 100 Billion

Blonde Ale
English IPA
Extra Special/Strong Bitter (English Pale Ale)
Oatmeal Stout
Southern English Brown
Special/Best/Premium Bitter
Standard/Ordinary Bitter
Sweet Stout

For best results we always recommend ordering an ice pack with your liquid yeast.

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.


Item # WY1099
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.19 LBS
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MoreFlavor Store
Recommended for an English Brown Ale
Gray Maxwell on Oct 11, 2022
English ale
Mike V on Dec 31, 2021
Recommended for an English Brown Ale
Gray Maxwell on Oct 11, 2022
Great for English Bitters!
Daniel Z on Jan 5, 2022
English ale
Mike V on Dec 31, 2021
brew beer
Daniel Z on Nov 4, 2021
Brewing a Christmas Ale
Lauren H on Sep 22, 2021
Pitching 1068 and 1099 in a recipe
travis k on Nov 7, 2020
Primary yeast
Bruce C on Mar 28, 2020
for an ESB
Terry V on Jan 28, 2020
Making an English IPA
Martin G on Mar 4, 2019
O need this
Edgar V on Nov 21, 2018
Seems appropriate for a double IPA I'll be making.
Hobby Guy on Mar 8, 2018
Great for English Bitters!
Daniel Z on Jan 5, 2022
brew beer
Daniel Z on Nov 4, 2021

3.9 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
My Best Bitter go to yeast
Lovely yeast that creates the right dry bready tones needed to make a bitter a bitter.
March 3, 2021
over 4 years ago
Rated 5 out of 5
My favorite, but very specific flavor
I use this a lot on my British style brown. It has a fruity sweetness to it that complements the style quite nicely; I wouldn't use it on something I wanted to taste crisp or dry, but for sweeter medium-dark beers it's great. They're not kidding about the flocculation, I have almost double the trub in the bottom versus other strains when I rack to my secondary. The result is reasonably clear without filtration.

I'm a fan of this yeast for the particular style I mainline, but don't expect it to work for everything. Should be great for everything from a nut brown to an ESB.

I should also note that this tends to be a pretty slow starter, but once it gets going it can be quite vigorous. I've had batches that have taken several days to get started but filled my airlock with foam by the time the primary was done.
March 10, 2020
Rated 3 out of 5
Too Fruity For My Sweet Stout
This yeast was specified in a sweet stout recipe I tried a while back. It fermented great, but the beer has a fruity note that really bugs me. While fruit character might be perfect for another style fermented with this strain, it gets in the way of the roasty toastiness of the malt in my stout.
May 26, 2015
Rated 4 out of 5
I had to save this in the fridge for two months before using. It took awhile in the starter to get it going but it finally became active. Turned out great.
May 22, 2015
Rated 5 out of 5
very particular fruity profile
i've used this twice on two totally separate beers. one, a boont amber clone (REALLY damn close match with this yeast) and another an old ale.

the bright and kind of tropical fruitiness was perfect for the amber, but really clashed with the old ale.
i think i will use this yeast when i want that tropical strawberry/pineapple background to come through. would work really well for fresh pale ales and reds, but not such a good match for stouts, barleywines, and old ales. this is a really specific yeast with a great unique character that i think i've found some awesome uses for.
May 23, 2014
Rated 4 out of 5
My new favorite ale yeast
I've used this yeast twice and each time with great results. I like the flavor profile, not too dry, and a bit malty with nice fruity characteristics. My yeast starters smell like bread dough rising. I wonder if that's where it gets its name.
November 4, 2013
Rated 1 out of 5
Yeast showed up dead.
Even though the ice pack was still cold when the yeast arrived the yeast never activated in the smack pack, even after using a starter. Very disappointing.
October 23, 2013