Citric Acid

Associated Sensory Terms:

Citric, Acidic, Citrus Bite

GMP Flavour Standard

FlavorActiV GMP Pharmaceutical Quality flavour reference standards can be added to alomst any liquid to impart a real flavour, off-note, or taint that's safe to both smell and taste. The flavour standards are sold individually in packs of 5 capsules, each capsule separately blister packed to provide flavour protection and prolonged shelf life.

Production adheres to strict pharmaceutical Good Manufacturing Practice (GMP) quality controls. FlavorActiV's dedicated GMP Flavour Centre is certified and regulated by the UK Government’s Medicine Regulatory & Healthcare Product Agency (MHRA) to a standard which far exceed ISO 9001, ISO 17025 or any food grade certification.

Beer Sensory

Cause of Flavour

One of the basic tastes in all beverages, it is common in some form in low pH beverages such as beers and carbonated soft drinks as it is a vital component of their flavour. Alteration in the level of sour will push the product out of its brand profile.

It occurs in alcoholic beverages from fermentation and in non-alcoholic beverages from flavourings. However it can also be imparted by bacterial contamination - indicating poor hygiene within the production and storage areas.


+ Beer Flavour Wheel Number: 0920
+ Typical concentration - seen 90-300mg/l
+ Recommended flavour standard / sensory reference standard of the American Society of Brewing Chemists (ASBC) and the European Brewing Chemists (EBC).

Coffee Sensory


FlavorActiV's GMP Flavour Reference Standard Sour has undergone evaluation by the same research team behind the first World Coffee Research Lexicon, and has been approved for inclusion within the latest World Coffee Research Lexicon as a validated coffee flavour reference.

In early 2014, together with two of the coffee industry’s leading organisations, FlavorActiV developed and launched an advanced Calibrating Coffee Sensory Plan to provide cupper training, cupper calibration and coffee tools throughout the coffee supply chain. In 2016 FlavorActiV partnered with World Coffee Research to validate the use of FlavorActiV's GMP Flavour Standards as reference standards within WCR's lexicon. FlavorActiV's Sour is of the 24 validated flavour reference standards.

View all FlavorActiV GMP Coffee Flavour Standards.