How To Test For Authentic Manuka Honey from New Zealand
To maintain the quality of manuka honey, the New Zealand government imposes strict regulations on its production and sale to the public. The NZ Ministry for Primary Industries (MPI) outlines legal requirements for exporting manuka honey.
This includes a scientific test of 4 chemical markers and a single DNA marker in the honey.
For mono-floral manuka honey, the test requirements are as follows:
Test 1: Chemical test
The following chemicals all need to be present and at these levels:
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3-phenyllactic acid at a level greater than or equal to 400mg/kg
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2-methoxyacetophenone at a level greater than or equal to 5mg/kg
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2-methoxybenzoic acid at a level greater than or equal to 1mg/kg
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4-hydroxyphenyllactic acid at a level greater than or equal to 1mg/kg
Test 2: DNA test
The DNA level from manuka pollen needs to be less than Cq 36, which is approximately 3fg/µL to be considered legitimate (regardless of whether it’s monofloral or multifloral).
This means regardless of the manuka honey numbers used on the label, a manuka honey must first pass the minimum testing requirements set out by MPI.
The MPI test results also indicate whether the manuka honey is classified as multifloral or monofloral. This must also be clearly stated on the label.
A monofloral manuka honey is typically labelled as ‘manuka honey’ and is considered of higher strength due to its higher manuka concentrations.
A multifloral manuka honey must also be labelled as such, often called ‘manuka blend’, 'multifloral manuka' or ‘manuka honey blend’ on labels.
What is a monofloral manuka honey?
Monofloral honey is honey that comes from the nectar of one main flower. In the case of manuka honey, this is the mānuka flower.
What is a multifloral manuka honey?
Multifloral honey is honey that comes from the nectar of many flowers or honey that has been blended with other types of honey. If the manuka levels in honey are not high enough, the honey will then be labelled as a multifloral manuka honey.
More on MPI testing for manuka honey
All of The tiny honey companies products are independently laboratory tested to ensure that they meet or exceed these minimum requirements.
These MPI tests give you the confidence that you are buying authentic NZ manuka honey, but they don’t tell you the strength or antibacterial activity of the honey.
This is an important measure and is one of the main reasons why manuka honey is so highly sought after. For the additional quality measurements, further testing is needed to identify the markers relating to the manuka honey’s potency and authenticity.
It is important to note that once the honey has been exported from New Zealand, there are no further measures or requirements from the Ministry for Primary Industries to guarantee the authenticity of the honey on the shelf.