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American Ale Yeast Activator - Wyeast 1056 - 4.25 oz.

$6.29

Product Number: ACT1056

Availability: In stock

$6.29

American Ale Activator Wyeast ACT1056- 4.25 oz.

Activate this Wyeast packet and in just 4-5 hours it will be ready to pitch. Ferments batches quickly. Very popular ale strain also known as the "Chico Strain". A definite step-up from dry yeast, this worthy investment creates a full flavor profile and allows the malt and hop character to dominate for a variety of beer styles.


  • Pure pitchable yeast for brewing
  • 100 billion yeast cells
  • For use with 5-gallon wort
  • Crisp flavor with low fruitness and mild ester production
  • Slightly citrus like with cool (60-66F, 15-19C) fermentation temperatures
  • Flocculation improves with dark malts in grain bill
  • Normally requires filtration for bright beers
  • DE or pad filtration recommended


Styles: Amber, Brown, APA, IPA, IIPA, Barleywine, RIS



Keep refrigerated. Do not freeze.

Activator™ packages will sometimes swell slightly, or moderately during shipping or later while properly stored. This is not an indication of deterioration if the package is less than 6 months old and has been properly handled. This is result of trace amounts of nutrients, still available at the time packaging, causing small amount of culture activity and CO2 production. Some strains are more prone to this than others.

Color No
Ideal Temperature Range (°F) 60-72F, 15-22C
Attenuation (%) 73-77%
Flocculation Low-Medium
Alcohol Tolerance (%) 10% ABV
Rate of Fermentation No
Foam Production No
Nutrient Requirements No
H2S Production No
SO2 Production No
Profile Ale
Manufacturer Wyeast Activator

Customer Reviews

29 People have reviewed this product

Overall Rating: 4.7

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Great yeast! Much better then dry! Review by Robert

(Posted on 5/28/10)

Product Rating:

I activated my Wyeast packet and 4 hours later it was ready to pitch! Its been 10 hours now and my batch is fermenting like crazy! This is definitely a few steps up from dry yeast and it was a great investment. Oh, and if you do order Wyeast during the summer make sure you add cold shipping for it. I forgot to and had to brew a day early. All is well though and I'm very happy. Enjoy!

Consistant Quality for a Variety of Styles Review by Andrew

(Posted on 4/5/11)

Product Rating:

1056 is our mainstay Yeast. It's very complementary for a variety of ales and produces a consistent product. Flocculation is Low to Moderate so you may want to add Whirlfloc tabs the last 15-20 of your boil if cloudiness is as much of an issue for you as flavor.

Consistent Quality Review by BVBCO

(Posted on 4/5/11)

Product Rating:

1056 is our mainstay Yeast. It's very complementary for a number of ale varieties and produces a consistent product. Flocculation is low to moderate, so if clarity is as important to you as flavor, just toss in some Whirlfloc tabs the last 15-20 minutes of your boil and you shouldn't have to filter.

Great all 'round American Classic... Review by ClassicAles

(Posted on 4/15/11)

Product Rating:

I've done extensive "side-by-side" brews where I split the batchs into two equal carboys and pitched two different brand/type yeasts. In this case, the 1056 was matched with WL-001 from WhiteLabs. Ferment ran, temp controlled, at 68F. The two batchs came out very similar with the Wyeast smack pack starting earlier and finishing a little earlier. The biggest difference was that Wyeast 1056 produced a very slight citrus note while the WhiteLabs 001 is a bit more on the sweet/malty side of the taste profile. If you're going for the S.N. Pale Ale taste, you can't go wrong here. Anything in the "clean and hoppy" taste profile will benefit from the use of Wyeast 1056. Cheers!

Excellent Review by Brettzel

(Posted on 8/14/12)

Product Rating:

OK in spite of the fact that the shipper left this on my stoop in the sun on a 95 degree day, we managed to save it before it exploded! Made a quart yeast starter and pitched it on a pale ale wort at an OG of 1.054. Yeast exploded out of the primary. Just love this stuff.

Great Yeast Review by Christopher

(Posted on 10/1/12)

Product Rating:

This is a great Yeast and is extremely easy to use. I did get nervous though because when I received it in the mail it was a little swollen, but midwest assured me that thats just a common occurrence with the 1056. Sure enough it all worked out fine and i had a great fermentation.

Pouch came inflated Review by Michael

(Posted on 10/3/12)

Product Rating:

When I opened my package the pouch was already inflated. I was told that it was still fine to use because the small pouch was not broken, but it was still a pain to use, I will stick with WLP.

Even helped me on a screw up Review by Doug

(Posted on 10/7/12)

Product Rating:

i did not smack well enough, did not have a starter, but we still had a full fermentation. I think that speaks of the quality and freshness of the yeast

100 billion mouths to feed! Review by El Duderino

(Posted on 10/21/12)

Product Rating:

The package was swollen when I received this, no big deal, threw it in the fridge till use. Followed instructions for use and 10 hours later the party started. I used this in my unfiltered pumpkin ale which turned out great!
I’ll take the WYEAST over white labs any day!

Great all around yeast Review by Matthew

(Posted on 12/6/12)

Product Rating:

This is a great yeast for almost any kind of ale. Never had a problem. It is great to save and wash or to pitch on top of due to the vast spectrum of beer styles it can be used on. Nice wide temperature range.

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American Ale Yeast Activator - Wyeast 1056 - 4.25 oz.