As one of the lead producers of high-quality Mānuka honey, we know that the terms MGO and UMF on jars of Mānuka honey can be confusing for many consumers. In this post, we explain what these labels mean, why they exist, and how honey producers use them.

What Are the Differences Between UMF and MGO?

UMF and MGO are standardised indicators of the concentration of bioactive compounds found in mānuka honey. These compounds can support the body when applied to the skin or consumed, helping to resist infection, improve skin health, and aid digestion.

UMF (Unique Mānuka Factor) is a comprehensive grading system that measures MGO levels as well as additional authenticity markers, including dihydroxyacetone and leptosperin. UMF indicates the quality, purity, and authenticity of mānuka honey.

MGO stands for methylglyoxal, the naturally occurring compound responsible for mānuka honey’s unique antibacterial properties. An MGO rating is a standardised measure of methylglyoxal content and is also a reliable indicator of quality.

Is UMF or MGO Better?

UMF is a more comprehensive grading system, while MGO is simpler and more direct to test. Because they measure different aspects of mānuka honey, neither system is inherently more reliable than the other.

What Are the Different Gradings?

UMF gradings typically range from UMF 5 to UMF 25, with UMF 30 being possible but uncommon. MGO ratings usually range from double digits up to around MGO 2000+.

At Aotea, MGO ratings are expressed as a number followed by a plus sign, indicating that the methylglyoxal content is at least that amount or higher.

While UMF and MGO measure different characteristics, there is a recognised relationship between the two grading systems.

• UMF 5 ≈ MGO 83
• UMF 10 ≈ MGO 263
• UMF 15 ≈ MGO 514
• UMF 20 ≈ MGO 829
• UMF 25 ≈ MGO 1200

What Are Different Grades of Mānuka Honey Used For?

Lower grades, between UMF 5 and UMF 10, are considered table-grade mānuka honey and are suitable for daily consumption.

UMF 10 to UMF 15 honeys are classified as therapeutic grade and are commonly used for short-term consumption.

Higher grades offer greater antibacterial potency. UMF 15 to UMF 20 honeys are antibacterial grade and are often used in skin therapy, while UMF 20 to UMF 25 are considered superior antibacterial grade and suitable for more severe wounds.

What Honey Does Aotea Stock?

Aotea stocks MGO 125+, 300+, 500+, and 800+ mānuka honeys. Our range includes both premium-grade honeys and everyday dietary options, with MGO 125+ ideal for daily use.