umf

UMF stands for Unique Manuka Factor, a grading system used to rate the quality and authenticity of Manuka honey in New Zealand. Developed by the UMF Honey Association, the standard assesses the honey’s content of several natural markers linked to its antibacterial properties and overall purity.

The UMF rating is based on measurements of three key compounds: leptosperin, dihydroxyacetone (DHA), and methylglyoxal (MGO). Accredited laboratories test honey against these markers, and the results are translated into a UMF grade, typically shown as UMF 5+, 10+, 15+, or 20+. A higher number indicates a stronger, more consistent presence of the markers, though taste, aroma, and color are separate considerations.

Labeling and certification: Packaging bearing the UMF mark also includes a license number issued by the UMF Honey Association and identifies the producer. The seal assures that the product meets defined minimum levels for the three markers and has passed the association’s quality controls.

The UMF system is distinct from other rating schemes, such as the MGO rating, which measures methylglyoxal content alone. Some products may display both UMF and MGO figures or use MGO-only labeling. The UMF standard applies to Manuka honey produced in New Zealand and is protected by licensing and independent testing.

In summary, UMF provides a standardized, independent measure aimed at signaling the presence of characteristic bioactive compounds in genuine Manuka honey, helping consumers compare products and avoid adulteration.