BrewEssence™ Sensory Training Kit - Basic Off-Flavors

BrewEssence™ Sensory Training Kit - Basic Off-Flavors

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BrewEssence Sensory Training kits are designed and manufactured to provide an industry-leading standard of accuracy and ease-of-use to the process of sensory analysis training across a wide variety of flavors and aromas commonly found in beer. The liquid format of BrewEssence Sensory Training Kits allows for easy preparation of spiked beer suitable for training groups of any size. The compounds can be used for a variety of purposes including preparation for beer judging, use in brewery taste panel management programs, and towards studying for successful completion of various beer certification programs.

Sensory Analysis
In the science of sensory analysis, we use our senses to measure the individual characteristics of products we consume as a vital part of a quality assurance programs. In the brewing industry, taste panel members are trained to accurately identify flavors, aromas and tactile sensations using a range of food-safe chemical compounds that are commonly found in beer.

BrewEssence sensory kits contain ampoules of spiking compounds representing some of the most important flavors found in beer, with each ampoule formulated to allow for easy identification of its specific compound when mixed and served to tasters. Each time a spiked beer is evaluated, the taster will compare it to a sample of the same variety of beer that has nothing added to it, referred to as a control sample. Having a control sample to compare against each spiked sample allows the taster to more easily identify and describe their perceptions of the spiking compound that is suspended in beer.

Each ampoule from a BrewEssence kit is designed to serve up to 20 people. Since each ampoule is single-use, we highly recommend bringing the kit to your homebrew club or getting a group of brew buddies together to maximize the value of each kit. These kits are a great introduction to sensory training for anyone entering BJCP or Cicerone education programs.

Basic Off-Flavors Kit

  • #1 Diacetyl
    • Flavor: buttery, butterscotch, buttered movie theater popcorn. Diacetyl changes the mouthfeel of beer. It produces a slick, mouthcoating sensation and makes the beer more satiating.
    • Production: Diacetyl is produced during fermentation as a byproduct of the synthesis of valine.
  • #2 DMS - Dimethyl sulfide
    • Flavor: creamed corn, cooked corn, cooked vegetable, oysters, tomato juice, vegetal. It produces a slick, mouthcoating sensation and makes the beer more satiating.
    • Production: DMS is produced primarily during wort boiling. S-methyl methionine, present in malt, is converted to DMS during the wort boil. DMS is also produced by some microbial contaminants.
  • #3 Contamination - Diacetyl + Acetic acid
    • ​Flavor: rancid butter, sour cream, buttermilk
    • Production: the most common contaminants that may be detected during the brewing process are Lactobacilli. Lactobacillus produces lactic acid, acetic acid and diacetyl.
  • #4 Papery / Oxidized - Trans-2-nonenal
    • Flavor: papery, wet cardboard, stale
    • Production: Trans-2-nonenal is formed by the oxidation linoleic acid.
  • #5 Acetaldehyde
    • Flavor: green (unripe) apples, cut grass, green avocado
    • Production: produced by yeast during the fermentation of glucose. It is the second last step in the production of ethanol.
  • #6 Skunky / Lightstruck - 3-methyl-2-butene-thiol
    • Flavor: skunky, sulfury, lightstruck, coffee/toffee
    • Production: 3-methyl-2-butene-thiol is produced when light reacts with hop acids and riboflavin.


Item # SEN201
Shipping Eligible for Free Shipping Program
Availability California - Out Of Stock
Pennsylvania - In Stock
Weight 0.67 LBS
Community Q&A

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Browse 2 questions Browse 2 questions and 10 answers
Why did you choose this?
MoreFlavor Store
Use for homebrew club training
Dennis F on Jan 8, 2022
gift for my homebrewing spouse
Emily E E on Dec 18, 2021
Use for homebrew club training
Dennis F on Jan 8, 2022
I am ordering this for a gift. My son has requested this specific kit.
Robin F B on Dec 20, 2021
gift for my homebrewing spouse
Emily E E on Dec 18, 2021
Quality control for the beer we make
Joseph K on Nov 19, 2021
Shelby D on Aug 12, 2021
Sensory off flavors test
Mayra m on Jul 10, 2021
What to understand the basic off flavors and how to identify them
DOUG K on May 18, 2021
certified cicerone studying
Joanne F M on Feb 18, 2021
Studying for tasting exam of the Certified Cicerone
Cory Francis on Jan 30, 2020
I am ordering this for a gift. My son has requested this specific kit.
Robin F B on Dec 20, 2021
Quality control for the beer we make
Joseph K on Nov 19, 2021
How do you store the ampoules? Do they need to be refrigerated?
Jennifer Tillman on May 4, 2021
BEST ANSWER: No need refrigerate. It is shipped without ice pack.

4.3 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Of-flavors Definitely Identifiable...
A little pricey for a subset of the off-flavor concentrates. Quantity was enough for mixing and distribution amongst our 15 homebrew club members. Our club is working towards developing BJCP judges. The off-flavors kits is part of the process to get us there.
September 28, 2020
1 year ago
Rated 5 out of 5
Great company
Third time ordering for my OFF-FLAVOR course I run. Always perfect with great shipping times. Will continue to order from these guys.
June 13, 2020
1 year ago
Rated 2 out of 5
Let down...
Our homebrew club bought this and followed the directions to the letter and were a little disappointed with the experience. The off flavors were barely noticeable in the taste but more noticeable in the aroma but still not very noticeable overall, making a much anticipated club experience a let down. If I did this again, I'd cut the amount of beer in half to 3/4 the recommended volume to get a more noticeable experience.
March 13, 2020
1 year ago
Response from MoreFlavor
Brad - Sorry to hear SEN201 didn't play out as anticipated, palates do certainly vary. Please give us a call at 1-800-600-0033 or email us at info@moreflavor.com so that we can assist you. We are here to help. Cheers!
April 29, 2020
Zach R Staff
Rated 5 out of 5
Works great
Works as advertised. Had a meet up with some local homebrewers and used the kit to explain the most common flaws. Don't know if the manufacturer reads these, but my only "would like" regarding the kit is the contamination mix, I'd like for it to be lactic acid with 2-ethyl fenchol (sour and earthy) which in my, admittedly limited experience, is more prevalent than acetic/diacetyl producing infections.

A couple of observations: we had a bit of trouble with some people not detecting the DMS and 3-methyl-2-butene-thiol, but that's because they're pretty prevalent in our local "macro" brews (Guatemala), that's not really a problem with the product.

I'm pretty pleased with the results and the homebrewers had a blast while learning how to tell where they might be messing up. All in all, a good experience.
March 4, 2020
1 year ago