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Suggested UsageMGO Level (MG/KG)
Suited for a
85 mg/kg
Minimum necessary for
260 mg/kg
Level necessary for
510 mg/kg
Ultra high levels for
820 mg/kg

Manuka Honey Antiviral activity & against Influenza studies and research by various scientists…from which we can draw our own conclusions on the benefit of Manuka Honey and Honey.

Charyasriwong, S., Haruyama, T., & Kobayashi, N. (2016). In vitro evaluation of the antiviral activity of methylglyoxal against influenza B virus infection. Drug discoveries & therapeutics10(4), 201-210.

Science or Snake Oil: is manuka honey really a ‘superfood’ for …

Charyasriwong, S., Watanabe, K., Rahmasari, R., Matsunaga, A., Haruyama, T., & Kobayashi, N. (2015). In vitro evaluation of synergistic inhibitory effects of neuraminidase inhibitors and methylglyoxal against influenza virus infection. Archives of medical research46(1), 8-16.

Carter, D., Blair, S., Cokcetin, N., Bouzo, D., Brooks, P., Schothauer, R. Harry, E. (2016). Therapeutic Manuka Honey: No Longer So Alternative.  Fronteirs in Microbioloby, 7:569.

MGO RATING OF MANUKA HONEY and Nice to Know information collected from the internet for readers benefit and further research. All Credit to the Authors & Researchers.
Professor Thomas Henle a German Scientist and team from Dresden University first discovered MethylGlyoxal (MGO ); the active unique element in Manuka Honey. Later, a system was created to measure the level of MGO in Manuka Honey collected by Apiarists from various regions of New Zealand, every batch of Honey is unique and has different levels of MGO per Kilogram. the MGO grows up wards for a period of 2 to 3 years from the initial Rating and the stars to come down over a period of time. MGO Grading system is very specific and accurate. It measures specifically the amount of Methylglyoxal (MGO) compound in Manuka Honey ppm/Kg.. The higher the amount of Methylglyoxal in the Manuka Honey, the higher the Therapeutic value.
MethylGlyoxal or MGO* Rating Is the most popular International Standard, All Honey testing labs in New Zealand give the MGO , NPA, DHA Rating for every batch of Manuka Honey Tested, MGO or MethylyGlyoxal is the compound occurring uniquely in Manuka Honey. There is also UMF another rating scheme which owned & the their trade mark monetised by an association in New Zealand, and then there is K Factor rating too, Both these organizations certify the level of MGO in Manuka Honey and are popular.

The most common marker for Manuka honey is MGO (methylglyoxal).

It is a natural compound with antibacterial properties and is measured in the MGO grading systems.

The NPA ( All New Zealand Govt approved Labs test Manuka Honey for  NPA (non-peroxide activity) which represents the industry’s standard phenol disinfectant).
If a Manuka honey has an MGO Rating of 263+ then it will be NPA 10 or umf 10 +

DHA (dihydroxyacetone) test is also present in the MGO testing packs of New Zealand Govt approved Labs grading system. It is the precursor for methylglyoxal and determines the overall MGO levels.

All Manuka Honey Producers test their Honey for three basic markers ie, MGO, DHA & NPA which assures the that the Honey is Authentic Manuka Honey . All Bee & Bee Manuka Honey is tested for MGO, DHA & NPA by New Zealand Govt Ministry of Primary Industries -Approved Laboratories.

METHYLGLYOXAL * MGO is measured as mg/kg (ppm) which is unique to Manuka Honey.

The following list is a guide for how to compare between MGO and UMF ratings. Methylglyoxal(MGO) & NPA grade of Manuka Honey.
MGO vs UMF & NPA Ratings compared
  • MGO 83 (UMF 5+) NPA 5
  • MGO 113 (UMF 6+) NPA 6
  • MGO 146 (UMF 7+) NPA 7
  • MGO 182 (UMF 8+) NPA 8
  • MGO 222 (UMF 9+) NPA 9
  • MGO 250 ( UMF 10+) NPA 10
  • MGO 308 (UMF 11+) NPA 11
  • MGO 356 (UMF 12+) NPA 12
  • MGO 406 ( UMF 13+) NPA 13
  • MGO 459 (UMF 14+) NPA 14
  • MGO 514 (UMF 15+) NPA 15
  • MGO 572 (UMF 16+) NPA 16
  • MGO 633 (UMF 17+) NPA 17
  • MGO 696 (UMF 18+) NPA 18
  • MGO 761 (UMF 19+) NPA 19
  • MGO 829 (UMF 20+) NPA 20
  • MGO 899 (UMF 21+) NPA 21
  • MGO 971 (UMF 22+) NPA 22
Most commonly found throughout New Zealand is the native Leptospermum scoparium, or Manuka, also known as the New Zealand tea tree—known for its barks that were used for tea by early settlers. It  looks like a small shrub with pointy leaves. Small flowers in white, sometimes pink, grow on the Manuka that blooms in good seasons like summer and spring. The Manuka is also able to grow in dry and wet places. In fact, when the Manuka tree fully develops, it is able to withstand long droughts and frost.

Aside from being a part of nature’s picturesque design, the Manuka is useful for so many other things. Its usefulness varies in range and purpose. These include:

Native Plant Nurseries for regenerating New Zealand native bush.

Manuka plants are special because they are resilient and can grow in extreme weathers/climates. They can grow in harsh soils like and steep wild country. Their  presence prevents soil erosion and allows for the growth of many other plants that they protect under their shade.

Since they are plants that are not usually eaten by animals, they are preferred for ecological restoration.

Planting and maintaining native plants or bushes such as the manuka on a farmland actually helps increase land value. They add landscape to the environment, protect other growing plants, provide food and shelter to wildlife creatures, and allow the native bushes to thrive. The trees are a source of honey and pollen for the insects.

Manuka Honey – Healthy & Yummy

Goes great on toast

Honey is often used to heal various numbers of illnesses. The honey that the Manuka produces can also be resourced for the same purposes—it can heal and treat cuts, burns and even pimples when applied on the skin. When taken orally, it can help ease sore throats. These are said to happen because of the Manuka honey’s antibacterial properties like methylglyoxal. When the concentration of this component is high, the healing effect of the honey is more active.

Caution must be observed when buying Manuka honey. MGO helps make sure that consumer rights are observed by assessing and providing high quality honey. Make sure to check the MGO on the bottle as well the place of origin.

Manuka Oil

Manuka oil also produces a therapeutic scent. That is why it is often used in aromatherapy. Studies have shown that the oil is good for relieving stress and other psychological strains that affect the physiological functions of a person. 

Often times the oil is used to help body and foot odor. A few drops of the Manuka oil are added to the body wash for the effect. For other practical uses, the oil has also been sold as perfume.

The Manuka oil extends its beneficial use to household purposes. For one, the oil can be used as a disinfectant. Ants and other insects don’t like the smell the oil produces and stay away from it. Apart from killing the germs, it prevents the spreading of airborne viruses that causes colds.

The oil can also prevent molding in certain fabrics when used in laundry.

Manuka Wood

Even the Manuka wood is useful. Its wood is often recycled as handle on tools like hammers and axes. It can also be used for firewood.
The Manuka’s sawdust can also be used in adding flavor in grilling fish and meat. It also goes great for fresh smoking kahawai.

Overall, the native manuka plant supplies a lot of benefits for the environment and humanity. They are providers of many needs and we must play our parts in protecting them. Use native seeds like manuka to decorate your landscapes, reap its benefits and help the environment.

New Zealand’s unique geographically climate is home to some very unusual plants. One of the oldest species of these plants is called Tea Tree (Leptospermum) and has grown here for millions of years. It survives best in low, marshy ground but is so hardy that it can be found on high in mountain slopes; even snow-covered and wind driven and often by the coast. Today its hybrid forms are found in many countries around the world.

In its millions of years of development Tea Tree has been attacked by animals, disease and fungus, insects and predation, humankind, and even viruses. Through all these attacks, the surviving New Zealand Tea Trees have evolved their own system of defence. One of these defences is the development of aromatic oil carried in thousands of minute sacks underneath each leaf. This oil contains antibacterial, antifungal and anti-inflammatory and antiseptic qualities that not only help the Tea Tree to survive but also do the same for us.

Small white crystals surrounding the edge of each leaf can be seen with a microscope. These crystal sacks contain Leptospermone, an antibiotic which is one of the active factors in the oil and is also found in some Tea Tree honeys.

New Zealand Tea Tree is generally found in two varieties: Manuka and Kanuka. However there is a third. Traditionally the Kanuka variety is called the ‘king’. It can grow to about 30metres/100.2feet metres high. Some trees growing wild on the Coromandel Peninsula are over 150 years old and still flowering each year!

Birds frequently feed on their seeds carry them away and dropping some that soon create new life. Kanuka’s botanical name is Leptospermum ericoides, sometimes called the White Tea Tree. Then there is Manuka, the ‘Mother’, with slightly bigger flowers ranging in colour from white to strong pink. Many of today’s beautiful and most decorative hybrid Tea Trees have been hybridized from this original species. Now they appear in everything from groundcovers, upright and weeping shrubs to small trees. Flower forms are single to fully double ranging from white through every shade of pink to deepest garnet red and burgundy plus multi-tonal forms. They now are found in many parts of the world in both hemispheres and apparently spread widely through Tropical and South America all the way to China.

Often the original wild species are found in lower altitudes in damp areas, but the Manuka is just as prolific as the Kanuka and also grows side by side with it in mountainous areas. The Manuka does not grow as tall (usually 5m/16ft by 3m/9ft) and is identified by its rather prickly leaf and much bigger clusters of seeds. It can be a darker green and is botanically known as Leptospermum scoparium.

Leptospermum Sinclairii, the ‘Child’, is much rarer; found only on Great Barrier Island and growing no taller than one metre. All three are endemic to New Zealand (they only grow naturally here). Worldwide the versatile Leptospermum has adapted and changed into well over 100 distinct species and many hundreds of hybrids. But none are as helpful to Humans and versatile as the original New Zealand Tea Trees.

The New Zealand Tea Tree plant and oils should not be confused with the Australian Melaleuca alternifolia plant which is known as the Australian Tea Tree or Paper Bark. This is a completely different decorative small tree often grown commercially in man-made plantations. It has thin almost needle-like leaves and is a close relative of the Callistemon with short spikes of white Bottle Brush flowers. There are 200 species mostly native to the Australian region and nearby tropical islands. They have spread widely throughout the tropical zones and have become dangerously flammable weed trees in some regions like Florida where they are sometimes called ‘Cajeput’. The oil it produces is equally as aromatic and beneficial but its scent is somewhat sweeter and more commonly sold commercially than the New Zealand Tea Tree oil which is much sharper and stronger in scent with the hint of turpentine pine.

The name Tea Tree originated first with the New Zealand Tea Tree after it was given this name by the explorer James Cook when he visited New Zealand in 1769. The ship’s crew of the Endeavour were searching for ways to remedy scurvy and other disabilities. They soon discovered that Leptospermum made a medicinally helpful drink that tasted similar to tea and later found ways of using the plant as a cure for many medical problems. The early settlers continued to use Tea Tree and found many more ways of using it.

Scientific studies are continuing, today in universities and laboratories in New Zealand, United Kingdom, France and Italy, to probe the possibilities that wild New Zealand Tea Tree oil can be used for its medicinal and curative properties.

 It is believed that the Maori of Mercury Bay may have explained their use of Manuka Tea Tree and other plants to Dr.Solander & Capt Cook..
On this first voyage Cook made beer with the Manuka leaves and Rimu twigs. He also found a treatment for diarrhoea when the crew learned to chew the Manuka seeds. Some people living on the Coromandel Peninsula still do this today. Decoctions of the leaves were used to reduce fever and treat colds. Preparations of the bark were used as sedatives.

For diarrhoea they chewed mature Manuka seeds, inner barks of Totara and Manuka were boiled.  The liquid produced becomes sweetish and is used to reduce fever. An infusion of the bark of Kowhai and Manuka is drunk for internal pains and applied externally to pains in the back and side.

In following years the early settlers learned to used Manuka preparations to reduce fever, treat colds and for various skin diseases and pain relief. The Kanuka decoction was used in early medicine as a gargle for mouth ulcers and to treat cuts and burns. The leaves were put in hot water and the vapour inhaled for coughs and colds. The leaves were also used in vapour baths. A decoction of leaves is still used for urinary complaints. The Tea Tree’s white gum can be applied to scabs and burns and given to suckling infants. Kanuka can be taken by adults to allay coughing while an infusion of bark is used as a sedative. Sap drained from a length of the trunk is used as a blood and breath purifier. Leaves were boiled and the fluid produced was used externally to reduce inflammation and especially to relieve congestion of the breast.

Today knowledge has advanced to the point where a Boeing 747 carrying 400 people can cover the distance from Tahiti to Mercury Bay in six hours. At the same time, advances in medicine and science have shown how to extract many beneficial products from New Zealand Tea Tree and its’ counterpart in Australia.

The base of these products is the essential oil taken from the leaves of the Kanuka and Manuka by popping, the small sacs under the leaves. The oils are extracted at relatively low temperatures to retain the qualities of the plant.

The oils are made into products like soothing medical soap, which cleanses the skin by the actions of Manuka on the surface and the lighter density Kanuka oils working deep into the skin.

Now toothpaste is being developed along with other natural products for export to other countries where Doctors and Dentists have observed the benefits of the unique New Zealand plant. Tea Tree oil is often used as an air freshener and to eradicate foul odours. It is used for bathing and soothing tired and aching feet. The oil is useful in compresses and poultices. It is an essential oil in vaporisers and is frequently used to combat colds, coughs and sore throat. It makes an effective mouthwash plus is the essential ingredient in a wide assortment of creams, hair care products and lotions. There are few other plants in the world that are as beneficial to Humankind as New Zealand’s classic Tea Tree.  

Manuka Honey science definition – MPI

What is MGO?

MGO, or Methylgloxal, is the magic ingredient in Manuka Honey , with well-documented antibacterial and antimicrobial properties. All natural honey has some antibacterial effects, but scientists have discovered that Manuka’s effects are much more potent, thanks to MGO.

The antibacterial properties of honey are provided by hydrogen peroxide. In normal table honey, the hydrogen peroxide activity breaks down, meaning the anti-bacterial benefits are lost. But in Manuka honey, thanks to MGO, the antibacterial properties remain even after the hydrogen peroxide has disappeared.

Manuka honey comes in a range of MGO ratings. The higher the number on the label, the better the health benefits and anti-bacterial properties are.

What MGO rating should I choose?

We’ve simplified the Manuka honey Product Labelling for our Consumers. This means you will only see MGO ratings on our labels If you’ve previously bought UMF or NPA-rated Manuka honey, then here is a simple chart that shows you the corresponding MGO level.

MGO LevelUMF number/NPA Grade
85 MGO5+
140 MGO6+
240 MGO8+
300 MGO10+
525 MGO15+
850 MGO20+
How can I be sure I’m buying genuine Manuka honey?

Manuka honey sold by is genuine as we procure and bottle them in NZ Govt approved RMP extraction and Bottling Plant. The New Zealand government has now brought in more strict legislation around Manuka honey and how it’s labelled, and all Manuka honey exported from New Zealand must now be laboratory-tested to prove it’s authentic.

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