At Rowse, we know that it can be difficult to choose which strength Manuka honey you should buy. We also know that each jar must have a substantial amount of MGO to be an authentic Manuka, so we would recommend buying a minimum of 100+ MGO.

three jars of manuka honey are sitting next to each other on a table .
Which Manuka honey should you buy? We recommend Manuka honey with a minimum of 100+ MGO.

As there are no UK guidelines to classify Manuka honey grades, we recognise that it can be difficult to shop products and compare them to understand with Manuka honey which strength you should buy.

However, a widely supported definition of authentic Manuka exists. It was set up by the UMF Honey Association and determines the minimum quantity of naturally occurring chemicals only found in the nectar of the Manuka flowers that must be present in the honey to be authenticated as Manuka.

The definition states that there are two key requirements for a honey to be authentic Manuka:

  • Methylglyoxal (MGO): Present at > 83mg/kg (=83+ MGO) to measure potency
  • Leptosperin: Present at >100mg/kg to measure authenticity

At Rowse, we recognise 83+ MGO is the official UMF threshold, but we choose to offer you a range of Manuka honeys with ratings of 100+ MGO, 250+ MGO and 500+ MGO for complete peace of mind - so you know which strength Manuka honey you should buy to make sure you're getting genuine Manuka.

You might also be familiar with the NPA rating which relates to the amount of Non-Peroxide Activity there is within the Manuka honey. NPA is a measurement of MGO and below are the equivalents:

  • Rowse Manuka 100+ MGO = 6+ NPA
  • Rowse Manuka 250+ MGO = 10+ NPA
  • Rowse Manuka 500+ MGO = 15+ NPA

Our Rowse Guarantee:

  • 100% authentic & natural Manuka honey from New Zealand
  • Sourced exclusively from selected New Zealand beekeepers, providing full traceability
  • Tested three times for authenticity & Manuka honey strength: at source in New Zealand, on arrival in the UK and again, before the jar is sealed

If you're interested to read more about Manuka and Manuka honey grades, we've got more for you here.


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