GY011 British Ale #1 Yeast - GigaYeast

GY011 British Ale #1 Yeast - GigaYeast

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With 200 Billion Yeast Cells per pack, the Giga Yeast Gold Pitch features nearly double the cell count of other liquid yeast producers. This equals faster starts, better flavors, and more insurance that your beer is going to turn out well. Double the yeast for just a little more money.  Smart brewing.

The British Ale #1 Strain
Versatile house strain from a traditional UK brewery.  Strong attenuation over a broad temperature range and low esters make this yeast perfect for a wide variety of styles.  GY011 is a strong flocculator that creates a clear beer.

More On Cell Count
200 Billion cells per pouch means that with one pounch you can attain the gold standard of pitch count. The ideal pitch rate is .75 million yeast cells for every milliter of wort  times degrees plato for nearly any beer you will make. 200 billion yeast cells is also fantastic if you are making 5 gallons of high gravity beer and don't have time to make a starter.  Saves money if you are making 10 gallons and only want to buy one yeast. Getting twice as many cells per pack versus the other brands is also a great idea for mail order shipment, which can be a little tough on liquid yeast.


Attenuation Medium Gravity*:  75% – 79%
Attenuation High Gravity*: 73% – 75%  (9.0% – 9.4% ABV)
Temperature Range†:  64˚F – 77˚F
Flocculation:  High

Style Uses:

  • British Ales
  • Amber Ale
  • Scotch Ale
  • Pale Ale
  • Barley Wine
  • Stout
  • Bitter
  • ESB
  • India Pale Ale

* Attenuation was measured after 8 days with Ale yeast at 70˚F and Lager yeast at 50˚F.  Medium Gravity is 14˚ – 16˚Plato.  High Gravity is 23˚- 25˚Plato.

†  The working temperature range represents the range at which fermentation for a given strain produces a typical attenuation- not necessarily the ideal temperature for your particular beer style.  As a rule of thumb, start ale yeast fermentation at 68˚ – 72˚F and then lower or raise temp as desired.  Lager Yeast are typically fermented at 45˚ – 58˚F.  If desired, Lager Yeast can be given a “hot start” at 65-68˚F and then lowered to the primary temperature after active fermentation begins (10-20hrs).


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

Item # GY011
Shipping Eligible for Free Shipping Program
Availability California - Out Of Stock
Pennsylvania - In Stock
Weight 0.35 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
Always reliable
Dennis B on Dec 3, 2020
It’s a nice ale yeast
george j on Aug 29, 2020
Always reliable
Dennis B on Dec 3, 2020
great yeast
Ryland Matthews on Sep 7, 2020
It’s a nice ale yeast
george j on Aug 29, 2020
for fermentation temp range
Ryland Matthews on Aug 25, 2020
Brewing a winter warmer
Andrew A on Mar 26, 2020
Worth a try for double the cell count
Robert C on Feb 10, 2020
Gonna try a stout with this yeast.
Ross M on Feb 16, 2019
Never seen this yeast before will give it a try
Tom H on Feb 12, 2019
Try Giga for the first time
Neal C on Dec 10, 2018
Used for one of my standard recipes
Peter L on Oct 30, 2018
High fermenting temperature, excellent customer service
Chromebook User on Aug 18, 2018
Trying it for an Imperial Stout
Kenneth R on Jan 27, 2018
great yeast
Ryland Matthews on Sep 7, 2020
for fermentation temp range
Ryland Matthews on Aug 25, 2020

5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Rated 5 out of 5
Gigayeast rules
I am going to use gigayeast exclusively now. Incredibly clean, quick, vigorous fermentations.
October 15, 2018
over 2 years ago
Rated 5 out of 5
Great Customer Service, Great Yeast
GigaYeast customer service really backs up their product and is very helpful. I was delivered old yeast, MoreBeer was out of stock (and promptly refunded my money), and Gigayeast sent me a super fresh batch direct. Outstanding service! Fermentation proceeded quickly and the yeast produced a nice Irish Red Ale with excellent clarity after using BioFine and cold crashing. I highly recommend GigaYeast.
September 19, 2018
over 3 years ago
Rated 5 out of 5
I had a great ferment with it.
March 29, 2018
over 3 years ago