Wyeast | 3787 Belgian High Gravity | Beer Yeast | Activator Smack-Pack System™ | 100 Billion Cells

Wyeast | 3787 Belgian High Gravity | Beer Yeast | Activator Smack-Pack System™ | 100 Billion Cells

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  • 3787 produces a nice balance of complex fruity esters and phenolics, making it desirable for use in other Belgian style ales as well
  • A classic Abbey strain for brewing Belgian dubbel or Belgian tripel
  • 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 strain for Belgian Dubbel or Tripel. Produces a balance of complex fruity esters and phenolics, which can be manipulated with fermentation temperature. A true top cropping yeast (additional headspace is recommended), that will work over a broad temperature range. 3787 is a wonderful Belgian-style house strain.

Attenuation: 74-78%
Flocculation: Medium
Alcohol Tolerance: 11-12%
Optimum Fermentation Temp: 64-78°F
Cell Count: 100 Billion

Belgian Dubbel
Belgian Golden Strong Ale
Belgian Specialty Ale
Belgian Tripel
Bière de Garde

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 # WY3787
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - Out Of Stock
Weight 0.19 LBS
Community Q&A

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MoreFlavor Store
I know trappist beer
Michael M on Mar 6, 2023
I am going to make a Belgian tripel
David S on Feb 15, 2023
I know trappist beer
Michael M on Mar 6, 2023
Trying it out
Arturo C on Feb 15, 2023
I am going to make a Belgian tripel
David S on Feb 15, 2023
Belgian Tripel
John B on Jan 17, 2023
I thought it'd make a great yeast for my cider project
Amy E. A on Nov 11, 2022
I think this will make a great hard cider.
John F on Oct 11, 2022
Ester, warm temp, higher Abv. For distilling
David R on Aug 25, 2022
brewing a triple
Steve J on Apr 28, 2022
Makes a great Farm House Pale Ale
Gery T on Apr 20, 2022
Recommended by other home brewer
James W on Apr 12, 2022
Maciej B on Feb 18, 2022
Charles D on Jan 22, 2022
brewing a westy 12 clone requires powerful belgian yeast
Tim D on Jan 22, 2022
Clark C on Dec 31, 2021
Love the Wyeast Belgian Abby but thought I’d try the Trappist this time to compare
Brent B on Nov 27, 2021
Sounded right
Steven A on Nov 25, 2021
New recipe
Aron Thomas M on Sep 16, 2021
I’m focusing on belgian brewing to wnjoy this fall/winter
Darren W on Jul 20, 2021
Good yeast
Lester B on Jun 14, 2021
For a Tripel
Jonathan H on Jun 3, 2021
Great yeast for Belgian style beers
Arthur G on May 7, 2021
making a high grav ale
Shawndell J on May 5, 2021
need a hardy yeast to ferment a russian hard ale
Shawndell J on Apr 13, 2021
Necessary for my batch
Tom s on Apr 2, 2021
Making a Belgian Tripel
William W on Mar 5, 2021
the word trappist
mark k on Dec 23, 2020
for a tripel
Daniel B on Nov 11, 2020
Craig Chaisson on Oct 10, 2020
Brewing a Tripel soon
Riccardo G on Sep 14, 2020
White IPA recipe
Adam S on Aug 26, 2020
I love beer
Trevor M J on Aug 20, 2020
Making a quad
Valued C on Jun 16, 2020
Good experience
John L on May 15, 2020
Bryan T on May 9, 2020
Belgian blonde
Norm E on May 4, 2020
used before
Eric M on Apr 29, 2020
belgian tripple
Brian Root on Apr 23, 2020
I want authentic, high ABV belgian beers.
Daniel Blakemore on Apr 14, 2020
Nice belgian session beer maker
Thomas B on Apr 6, 2020
Used recently for a Belgian Quad and it performed great.
Steve K on Apr 1, 2020
Belgian Tripel
Mark B on Mar 31, 2020
What you recommend
ryan p on Mar 31, 2020
good past experience
PETER H H on Mar 31, 2020
Always good
David W on Mar 26, 2020
For belgians
Jaime E on Mar 17, 2020
Making a Belgian tripel
emily b on Feb 4, 2020
i making a belguim quad beer
Christopher V on Nov 19, 2019
My Belgian Tripel recipe comes in around 12% and this makes it perfect.
Kevin G on Oct 3, 2019
To brew Belgian triples
Cody A on Aug 28, 2019
Best yeast ever
Bret E on Jun 14, 2019
Trying it out
Arturo C on Feb 15, 2023
Belgian Tripel
John B on Jan 17, 2023

4.3 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 1 out of 5
Dead Yeast
This is the last time I will use Wyeast. I've been brewing for years and always used White labs yeast. I ordered this by mistake and it was a mistake. Followed the directions and it's been 30 hours and no activity. So I'll spend more money at the local brew shop to get a tube of reputable White labs yeast.
March 27, 2023
Response from MoreFlavor
So sorry to hear about your experience. Thank you so much for your feedback. We really appreciate the honesty and value great feedback like this as it helps us improve our products. We try very hard to create the best experience for our customers and provide quality products. For any questions or concerns you can reach out to our customer service team by scrolling to the bottom, right-side of our web page and following the appropriate link. We are here to help. Cheers!
March 31, 2023
Zack Marin
Rated 4 out of 5
Belgium Tripel yeast
Active fermentation as it should!
February 20, 2022
over 2 years ago
Rated 5 out of 5
Great yeast
Great growth and activity in the starter ~36 hours prior to pitch. Took off like an animal upon pitch, lots of blowout within 24-36 hours and bubbling away
November 1, 2021
over 2 years ago
Rated 5 out of 5
Use Blow Off Tube
I have used this yeast twice this year, once for a 2.5 gallon batch of Tripel, brewed in July, and then bottle conditioned 4 months. It was a 10% ABV monster with lovely spicy phenolic yeast notes, grain bill, and hop additions were kept very simple to really let the yeast shine, and this turned into a favorite recipe I will be sure to repeat, it nailed Westmalle character. The other is a 5 gallon batch of Dubbel with holiday spices that will be getting kegged later this week and is currently in the fermenter. For both beers I made a starter the night before pitching, and in less than 24 hours after pitching, the yeast was at the top of the fermenter. Both times I barely caught it in time to make a makeshift blow-off tube, next time I'll set it up form the start. The Tripel started at 1.086 and fermented down to 1.008, and the Dubbel started at 1.070 and fermented down 1.012.This yeast flavorful, reliable, and aggressive, I would recommend this yeast all day everyday for any Belgian styles, and especially Abbey styles. Once last thing: before racking, cold crash your beer after fermentation completes, otherwise this yeast will stay in suspension. I would say the "medium" flocculation is a very low medium.
Tripel with 3787
Dubbel with 3787
December 6, 2020
over 3 years ago
Rated 5 out of 5
Trappist 3787
This is a very consistent Belgian yeast for high alcohol brews such as tripel and dark strong. This yeast gets off to a strong & quick start and ferments down to low gravity numbers. I have used this yeast many times and am very pleased. Provides some very good phenols as well and has that distinct Belgian flavor depending on the fermentation temperature you choose.
April 23, 2020
over 4 years ago
Rated 5 out of 5
This yeast is a beast!
April 11, 2020
over 4 years ago
Rated 5 out of 5
Wyeast 3787
Yeast was one month from manufactured date and fermented like a pro.
January 6, 2020
over 4 years ago
Rated 5 out of 5
Ooooh yeah try me
This is my favorite for all around belg. Beers. best with less age. Some of these belg. yeast need the age to get that right flavor. Not this one. Tripels, dubbel in a month, boom drinky drinkie
October 4, 2019
over 6 years ago
Rated 5 out of 5
Number one for Belgian brew here
This is certainly my number one favorite Belgian yeast and provides true and up front Belgian character.
June 6, 2019
over 6 years ago
Rated 5 out of 5
one of my favorite yeasts of all time
Attenuates quickly and thoroughly. Not finicky, and adds a very nice Belgian yeast character without being difficult to use like others (think Belgian saison 3724?)
April 11, 2019
over 5 years ago