david_lyttle's Identifications

How to tell difference

Manuka
flowers have short stamens
Leaves are pointy at the tip
The flowers of the manuka are almost as big as a one dollar gold coin.

Kanuka
flowers have long staymen
On the other hand the flowers of a kanuka are smaller than the one dollar gold coin
Kanuka – In addition to being small, the flowers also grow in clusters. This means that there are several flowers growing together in one spot.

Source: Wikkipedia
Mānuka honey for export from New Zealand must be independently tested and pass the Mānuka Honey Science Definition test as specified by the Ministry for Primary Industries (MPI), The test comprises five attributes. Four are chemical and one is DNA of Leptospermum scoparium.[2] The honey must pass all five tests to be labeled as mānuka. This testing came into effect on 5 January 2018.[6]

The MPI does not have a definition for mānuka sold in the New Zealand domestic market. The MPI Five attributes test is the only standard recognised by New Zealand legislation.[citation needed]

s a result of the high premium paid for mānuka honey, an increasing number of products now labelled as such worldwide are counterfeit or adulterated. According to research by UMFHA, the main trade association of New Zealand mānuka honey producers, whereas 1,700 tons of mānuka honey are made there annually representing almost all the world's production, some 10,000 tons of produce is being sold internationally as mānuka honey, including 1,800 tons in the UK.[12] In governmental agency tests in the UK between 2011 and 2013, a majority of mānuka-labelled honeys sampled lacked the non-peroxide anti-microbial activity of mānuka honey. Likewise, of 73 samples tested by UMFHA in Britain, China and Singapore in 2012–13, 43 tested negative. Separate UMFHA tests in Hong Kong found that 14 out of 56 mānuka honeys sampled had been adulterated with syrup. In 2013, the UK Food Standards Agency asked trading standards authorities to alert mānuka honey vendors to the need for legal compliance.[12] There is a confusing range of systems for rating the strength of mānuka honeys. In one UK chain in 2013, two products were labelled "12+ active" and "30+ total activity" respectively for "naturally occurring peroxide activity" and another "active 12+" in strength for "total phenol activity", yet none of the three were labelled for the strength of the non-peroxide antimicrobial activity specific to mānuka honey.[12]