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Knowledge and awareness about authentic honey purity testing methods among honey consumers are needed ever more than before.
The reason is, that due to the high demand and limited natural honey production, even big commercial brands tend to adulterate honey.
Therefore, If you remain unaware of modern honey mixing methods and still believe in old and outdated home testing methods, you are fooling yourself and consuming adulterated honey, which will harm your immune system.
There are many conventional simple methods of testing original honey, but are they reliable?
Most of the so-called Home testing methods aim to test only the physical nature or density, if these density tests are to be believed then you may end up proving some thick sugar syrup as pure honey.
So, how do we identify pure honey? Or how to make sure the honey you are consuming is pure?
Here you will find helpful and practical knowledge of how honey adulteration is advancing and what one must look for in honey brands to get pure honey.
Let’s dive into all aspects related to honey adulteration and methods to know the purity of honey:
Your fancy honey might not actually be honey
Tests show most store honey isn’t honey
A food lab analyzed 110 commonly available honey products and found more than 70 % were ‘adulterated’
10 out of 10 brands violate FSSAI standard
Honey is the third most adulterated food in the world
Usually, honey is adulterated with cost-effective, easily available materials that pass the testing parameters in practice.
CSE (Centre For Science and Environment) says that before we imported sugar syrup from China to adulterate honey, however, Chinese technology is implanted in some Indian states to produce fructose syrup for honey adulteration purposes.
Here are a few examples:
Molasses is made by boiling sugar cane juice until it becomes thick and viscous. In earlier days, it was a common adulterant. Furthermore, it is turbid and dark in colour and tastes sweet as honey.
Factories make this thick, shiny solution for the baking and confectionaries industry. In addition, it is easily available in the market and cost-effective.
It is a thick, shiny liquid. Factories manufacture it by processing refined sugar (through acid hydrolysis). Similarly, inverted sugar has extensive use in confectionery, bakery and culinary industries too.
HFCS is an advanced honey adulterant. It is the product of the processing of sweetcorn.
Both its consistency and composition are similar to honey. Thus, making it a suitable adulterant for big honey brands.
It is manufactured through the unique processing of rice. It is the most advanced and most common honey adulterant in the world.
For details refer to our blog post Types of adulterants in honey
Internet is filled with many home testing methods like water dissolution tests and thumb tests etc. We want to know to test pure honey in easy ways.
However, these tests judge just the physical properties of the density of a given material.
Unfortunately, these tests can give both false positives (fake honey shows positive results) and false negatives (pure honey shows negative results).
Let’s check a few home honey testing methods and their importance:
Take a glass of water and add honey slowly. If honey reaches the bottom of the glass without dissolving, then it is believed that honey is pure.
But the fact is that except for molasses, all other adulterants are dense enough to behave like pure honey. The adulterants were made deliberately thick to appear like pure honey.
Note: Unripen honey is less dense (thin consistency). Therefore it may dissolve faster in water. Hence, it can give false-negative results.
Helpful article on moisture content in natural honey
Take a matchstick, dip its tip into the honey and finally strike the stick on the matchbox to light it. If honey is pure it will light, If impure it will not light.
It depends on the presence of water (moisture) in honey. Ripe honey has lesser moisture and so as thick adulterants. Hence it can give false-positive results.
First method: Dip a small cotton ball in honey and shake off excess honey and dry it to burn on flame. It is believed that if the cotton ball is brunt it is considered pure. Second method: dip currency notes in honey and try to burn them. If the currency note doesn’t burn, honey is considered pure.
Note: Both tests are baseless because the burning tendency depends on the moisture level or thickness of the given product.
Take a cloth or blotting paper and pour a few drops of honey over it and make it flow. If it flows without wetting, honey is considered pure. If it wets or gets absorbed, honey is considered impure.
Again it depends on the water or moisture present in honey. Adulterants also flow on the cloth as pure honey because their density is similar to pure honey.
Take a little honey in a bowl, add water to it and shake it clockwise. The general belief is that pure honey forms a hexagonal shape or honeycomb-like pattern on the bottom of the container.
This is a baseless and unscientific test because all thick adulterants behave in the same manner.
Put a small drop of the honey on your thumb. Check if it spills or spreads around on your thumb. If it spreads then the honey is impure since pure honey will stay intact on your thumb.
This test can just differentiate between thin and thick honey, not its purity.
Another popular myth is that “Ants do not get attracted to pure honey”. There is no reason why ants will not get attracted to such a sweet substance. In fact, honey bees form a sticky lining of propolis to protect their hive from ants attack because ants are attracted to honey.
Many believe that dogs will not eat pure honey. The fact is that there is no reason why a hungry dog won’t eat pure honey. In some countries, people feed dogs with honey to keep them healthy.
“Honey is the natural sweet substance produced by honey bees from the nectar of plants or secretions of living parts of plants.
According to FSSAI, Honey should fulfil the following parameters to be called “Honey”.
|1.||Specific Gravity at 27°C, Min||1.35|
|2.||Moisture, per cent by mass, Max.||20|
|3.||Total reducing sugars, per cent by mass, Min.|
|(a) For the honey not listed below||65|
|(b) Carviacallosa and Honeydew honey||60|
|(c) Blends of honeydew honey with blossom honey||45|
|4.||Sucrose, per cent, by mass, Max|
|(a) For the honey not listed below||5.0|
|(b) Carviacallosa and honeydew honey, Max||10|
|5.||Fructose to Glucose ratio (F/G Ratio)||0.95-1.50|
|6.||Total Ash, per cent, by mass, Max.||0.50|
|7.||(a) Acidity expressed as formic acid, per cent, by mass, Max.||0.20|
|(b) Free acidity milliequivalents acid / 1000 g, Max.||50.0|
|8.||Hydroxymethylfurfural (HMF) mg/kg, Max||80.0|
|9.||Diastase activity, Schade units per gram, Min.||3|
|10.||Water-insoluble matters, per cent, Max.|
|(a) For the honey not listed below||0.10|
|(b) For pressed honey||0.5|
|11.||C4 Sugar, per cent, by mass, Max.||7.0|
|12.||Pollen count element / g. Min.||5000|
|13.||2- Acetylfuran-3-Glucopyranoside (2-AFGP) as Marker for Rice Syrup||Absent**|
|14.||Foreign oligosaccharides (Max Percent peak)||0.7|
|15.||proline, mg/kg, Min||180|
|(a) Honey not listed under Honeydew, Max.||0.8 mS/cm|
|(b) Honey listed under Honeydew, Min.||0.8 mS/cm|
Note: But CSE (Centre for science and environment) has proved that these parameters are not sufficient to know the purity of honey.
They found that many brands sell rice syrup in the name of honey, as they clear all the parameters set by FSSAI. Only advanced tests like TMR, SMR, NMR and LC-HRMS can detect these adulterants.
It is an important test that identifies the ageing and any heavy heating treatment to honey. Read more about the HMF test of honey and how it is helpful.
This test identifies the amount of pollen count in honey. As a result, this will help to know the botanical origin of honey.
The limitation of electrical conductivity by Codex Standard for Honey should be less than 0.8 mS/cm per 20g of honey solids when diluted with 100 ml of water.
The acidity, salt content, moisture, viscosity and honey source influence the electrical conductivity of honey.
Following are a few advanced laboratory tests which are introduced to identify advanced adulterants:
Let’s check which advanced test can identify which adulterant.
|DETECTION OF||13C EA/|
|LC-HRMS TEST||NMR TEST|
|C3 Sugar||Somewhat effective||Very effective||Somewhat effective|
|C4 Sugar||Very effective||Very effective||Somewhat effective|
|Tailor-made syrup||Not effective||Very effective||Not effective|
|Illegal Resin processing||Not effective||Not effective||Very effective|
|Moisture Reduction||Not effective||Not effective||Somewhat effective|
|Botanical and Geographical Origin||Not effective||Not effective||Very effective|
By comparing the individual deviations between δ13C values of different honey fractions, C4 sugars & Foreign oligosaccharides can be identified.
This advanced test focuses on different artificial sugar syrups like C3, C4 and tailor-made synthetic syrups.
Proline is the dominant amino acid in honey. It has been considered an indicator of honey quality. Natural honey should have atleast180mg of proline content per Kg. If the proline test value is less than 180mg, then it indicates adulteration in honey.
These tests are invented to specifically detect rice syrup adulteration in honey.
The Nuclear Magnetic Resonance test is an analytical technic to determine the purity, botanical and geographical origin of honey.
With the above-advanced test checklist, you can check which brand of honey is pure in India.
Selling adulterated honey is a crime. Therefore, the Government of India should make the NMR test for honey mandatory for big and local brands.
As a result, we can catch honey adulteration before consumers buy honey in the market.
Awareness of authentic honey testing methods and the inclusion of advanced analytical technics in FSSAI parameters are needed to curb honey adulteration in India.
Where can I buy pure honey? Well, Bharat Honey is the hope because it is 100% Pure honey collected from the source and NMR test passed in INTERTEK (Germany) Laboratory. View laboratory reports
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I bought honey from one of the local catcher. I tried all these old testing methods. Mostly passed too. Kept in an stainless steel container. After some months later, it become very hard. Kind of cake. If I keep in sunlight, started melting. Smell & taste everything looks real honey. Totally confused. Did I fail in procuring fake adulterated honey. Please suggest.
Don’t worry Crystallization of honey is a natural phenomenon. If honey gets crystallized, there are more chance that it’s pure.
What is the chance that honey that has crystallized is pure? I bought a brand that crystallizes that is being sued for adding things to their honey. I have a good science background. Thank you for your time!
If honey gets crystallized, one should know that it is a natural phenomenon.
Many brands modify honey(to stop Crystallization) to the extent that, it suppresses nutritional and medicinal value.
Please watch an informative video on the Crystallization of honey. https://www.youtube.com/watch?v=5GNaiJpjvE0
Thank you so much for giving this information. It will surely help people and also will get depth knowledge and awarness on honey.