Student - Organic Acids Kit

Product Code: TK100
Tags: acids

Price: $60.00

Preparing for the rigorous Q-Certification exam? Or simply interested in learning more about the role of organic acids and their impact in coffee quality? 

Then we highly suggest get a hold of our "Organic Acids Taste Kit". 

Developed by coffee scientist Joseph A. Rivera and co-developer of the Q-Certification program, this kit will provide with six (6) of the most common organic acids found in specialty coffee. The protocol which has now become part of the Q-Certification exam, was based on years of research in understanding the role of acids in coffee quality. 

Official Organic Acids Developer

Official Organic Acids Developer

We are the official developers of both the Organic Acids modules as well as the Coffee Quality Institute's - Q-Certification program since its launch in 2000. Over the years we've provided various training materials for students and instructors to successfully carry out the over 22 exams required by the Q exam.

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Q-Grader Breakdown

Q-Grader Breakdown

The Q-Grader consists of over 20 exams.

Of these a critical piece is the ability to identify and differentiate the four most commonly found acids (ie. citric, malic, phosphoric, acetic) in coffee. Testing a student's ability is what is know collectively as the 'matching pairs' exam for the Q-Grader exam.

For more information on the Student vs Instructor Kits click below.

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Q-Acids Exam

Q-Acids Exam

The Organic Acids Kit includes everything you need to re-create the samples tasted during an actual Q-exam and/or SCAA Cuppers Tasters Certificate (CTC).

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Understand the Role of Acids in Coffee

Understand the Role of Acids in Coffee

Acids play an important role in coffee's taste profile and can vary significantly depending on the level of roast. This kit will allow you to experiment with coffee acids to explore the nuances of each acid and its impact on taste.

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All materials included

All materials included

Don't have a degree in chemistry? No worries, we'll provide you with all the technical information on each acid, its importance both before and after roasting.

If you're making the $1,500-$2,500 USD investment to get 'Q-Certified', then we highly recommend you purchase a organic kit to help you practice before enrolling in the course.


Organic Acids Kit / Q-Grader Matching Pairs / Practice Kit

This kit is used for students who are preparing to take the Q-Exam or who simply want to experiment on the affect of organic acids on taste. Please note that this set is NOT meant to run courses, refer to the FAQ section for more information.

The kit is composed of an Instruction Manual and four 30mL bottles of the following acids. 

  • Citric Acid
  • Acetic Acid
  • Malic Acid
  • Phosphoric Acid
  • Lactic*
  • Tartaric**

* newly added acids, now expanded to 6

** is not found in coffee, but is included for experimental purposes.

In addition, all acids are made of food grade purity and in compliance with the Coffee Quality Institute's Q-Certification standards.

Q-Grader Organic Acids Kitphoto credit: @alau314 Q-Grader Organic Acids Kitphoto credit: @the_rogue_barista Q-Grader Organic Acids Kitphoto credit: @coffee.chemistry
Q-Grader Organic Acids Kitphoto credit: @egg_ryo Q-Grader Organic Acids Kitphoto credit: @nikosantzaras Q-Grader Organic Acids Kitphoto credit: @normanito
Q-Grader Organic Acids Kitphoto credit: @the_mookstir

Q-Grader Organic Acids Kit

photo credit: @the_rogue_barista

Q-Grader Organic Acids Kitphoto credit: @the_rogue_barista

Q-Grader Organic Acids Kit

photo credit: @himyjava

Q-Grader Organic Acids Kit

photo credit: @himyjava

Q-Grader Organic Acids Kit

photo credit: @roger_zapata

Q-Grader Organic Acids Kit

photo credit: @eddie_kireeff

Q-Grader Organic Acids Kit

photo credit: @ladelostintos

Q-Grader Organic Acids Kit

photo credit: @himyjava

Q-Grader Organic Acids Kit

photo credit: @roast.cup.repeat

Q-Grader Organic Acids Kit

photo credit: @ladelostintos

Q-Grader Organic Acids Kit

photo credit: @himyjava

Unfortunately DHL requires extensive documentation for orders shipped via to Russia, Venezuela and China.

For these orders we highly suggest you select international USPS, estimated time for delivery is about 7-10 days. 

Please be aware that there may be a slight delay for all international orders due to COVID.  Although we ship all orders within 24 hours, we have no control of the package once it arrives.

Orders can be tracked here:

  • USPS tracking: here 
  • DHL tracking: here