Mousy GMP Flavour Standard

Mousy GMP Flavour Standard

The Mousy GMP Flavour Standard is a professional sensory training reference designed to help tasters accurately recognise, describe, and assess the intensity of mousy flavour in alcoholic beverages.

When added to beer, cider, wine, or other liquids, this mousy GMP Flavour Standard reproduces the characteristic aftertaste associated with mousy off-flavour, allowing consistent calibration across tasting panels and training environments.

This standard is widely used by brewers, winemakers, sensory scientists, and quality assurance teams to improve fault recognition and sensory alignment.

£75.00 GBP

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We ship globally – shipping costs may apply depending on your region

Minimum Order: £275

WHAT IS MOUSY FLAVOUR?

Mousy flavour is a subtle off-flavour most commonly perceived in the mouth and back of the throat after swallowing, rather than on the nose. It relies on pH changes in the taster’s mouth to make it volatile and is often difficult to identify without targeted training.

‘Mousy flavour’ is a delayed, retronasal off-flavour in fermented beverages, commonly associated with microbial contamination.

WHAT CAUSES MOUSY FLAVOUR?

Understanding what causes mousy flavour is essential for effective quality control.

Primary Cause: Brettanomyces Yeast
A mousy flavour most commonly results from Brettanomyces yeast contamination in beer and wine production. Brettanomyces can significantly alter flavour profiles and negatively impact brand perception.

During metabolism:
– Amino acids such as L-lysine
– Ethanol

Other Microbial Causes
Mousy flavours can also be produced by various bacteria, including certain lactic acid bacteria, which follow metabolic pathways similar to those of Brettanomyces and produce comparable sensory effects.

USING THE MOUSY GMP Flavour Standard FOR SENSORY TRAINING

The Mousy GMP Flavour Standard is designed to support structured sensory training and calibration, especially for difficult-to-detect faults.

It helps professionals to:

– Learn how mousy flavour presents post-swallow
– Recognise intensity at realistic threshold levels
– Differentiate mousy taint from oxidation or stale cereal notes
– Align panel language and scoring accuracy

Regular training ensures consistent detection across tasters, sites, and production environments.

HOW TO RECOGNISE MOUSY FLAVOUR: SENSORY TERMS

Sensory panels commonly describe mousy flavour using terms such as:

– Mouse cage
– Popcorn
– Cracker/corn chip
– Dry cereal

Training with a Mousy GMP Flavour Standard helps embed these descriptors into long-term sensory memory. It supports the early detection of mousy taint—often only noticeable after swallowing—allowing teams to identify hygiene, fermentation, or microbial issues and take corrective action before products reach consumers.

WHAT ARE THE PROFESSIONAL APPLICATIONS OF THE MOUSY GMP Flavour Standard?

The mousy GMP Flavour Standard is widely used across beverage production and sensory science environments, including:

– Beer brewing and quality control programmes
– Wine production, particularly low-intervention and natural wines
– Fermented beverage manufacturing and stability testing
– Sensory panel training and calibration
– Academic, professional, and regulatory sensory education

OTHER INFORMATION

– The Mousy GMP Flavour Standard is part of a wider range of Brettanomyces-related sensory standards.

– Intended for training and sensory evaluation purposes only.

– For information on additional Brettanomyces GMP Flavour Standards or sensory kits, please contact us.

FlavorActiV GMP Flavour Standards

Only Pharmaceutical Quality GMP Flavour Standards provide sufficient quality for professional sensory panels to train and validate with.

We produce encapsulated GMP (Pharmaceutical Good Manufacturing Practice) Flavour Standards that are safe to both smell and drink. The compounds within our capsules impart the aroma, taste and mouthfeel of a specific defect or positive flavour into a beverage for the purposes of taster training, calibration and quality control.

Our individual flavour GMP Flavour Standards are sold by flavour, each flavour pack contains 5 capsules, each separately blister packaged. Our sensory kits contain a mixture of flavours, each separately blister packaged, read the product description for flavour details.

We ship globally, and have over 20 years of experience at it. Our GMP Pharmaceutical Flavour Standards are produced to the highest standards, and as such, their shelf-life is strong and their quality consistent.

FlavorActiV’s flavour centre is the world’s only pharmaceutically run facility dedicated to the production of flavour reference standards. The Flavour Centre is a state-of-the-art facility housed within the campus of world-renowned Quay Pharma near Liverpool in the U.K.

The Flavour Centre was designed by FlavorActiV from the ground up at the direct request of global customers as they looked to move away from inferior food grade ‘certified flavour standards’ to GMP Pharma, a standard that ensures safe, stable, traceable, consistent and long shelf-life products.

All FlavorActiV’s industry-leading encapsulated flavour standards are manufactured following GMP at our Flavour Centre. All aspects of manufacture are overseen by Quay Pharma who are audited by the U.S. Food and Drug Administration (FDA) and the U.K. Medicines and Healthcare Products Regulatory agency (MHRA). We also welcome customer audits.

Only FlavorActiV GMP flavour standard capsules bear our mark of authenticity.

We brand each of our capsules so that our customers know they’re getting the Pharmaceutical GMP Quality that only FlavorActiV provide.

Industry leading packaging and shelf-life

FlavorActiV flavour standards are blister packaged, which extends shelf-life and protects capsules from potential contamination. The average shelf-life of FlavorActiV flavour standards is 18 months to 4 years, depending on the flavour compounds.

We will never ship in pots or plastic packaging, here’s why…

Blister packaging protects capsules from the environment until they are ready for use. Blister packaging greatly reduces the amount of headspace for possible flavour escape. As each capsule individually blister packaged, making use of one capsule still leaves all others protected. FlavorActiV Flavour Standard packaging is 100% recyclable, as opposed to polypropylene which is not widely recycled.

Pots are semi-porous, they allow molecules to pass through and flavour to be lost, their significant headspace also adds to substantial flavour escape as a gas, even when using just one capsule all those remaining in the pot are exposed.

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