How to identify pure coffee or dyed, mixed coffee.

Current Situation of Coffee Market

Vietnam's coffee market is very active at present, with many brands, from high-end to civilians, and hundreds of non-brand coffee products.

In order to maximize profits and take advantage of the confidence of domestic consumers, many coffee producers in Vietnam do not hesitate to mix impurities, chemicals, spices, pigments and preservatives into coffee. These "indispensable ingredients" create a series of coffee products called "Vietnamese coffee", which is accompanied by potential risks to consumers' health.

For example, using burnt corn and soybean combine with caramel that will produce about 20 kinds of toxins harmful to health, including acrylamide and heterocyclic amines (HCAs). .. is a carcinogen; or CNC thickener, if used in industry, may cause cancer because it contains many toxic impurities. Even using in food, it is harmful if it is used in excess.

As time goes by, most Vietnamese consumers misunderstand the quality of coffee because of habit or indulgence, blind trust and lack of accurate information. They believe that a good cup of coffee must ensure three elements: more foam (white foam), more concentrated/ thick (high viscosity) and black. However, in fact, pure coffee can't satisfy these three factors. Pure coffee is only light brown (dark or light, depending on the style of each roaster), and transparent brown color – not too thick, only a little brown foam of coffee.

Many coffee products in Vietnam mix impurities, chemicals and flavorings, reducing the quality of pure coffee.

Harmful effects of dirty coffee

Dirty coffee is coffee that has been counterfeited, mixed with unsafe substances or produced in poor hygiene conditions. Consuming dirty coffee can cause many harmful effects to health, including:

• Risk of infection: Coffee produced and processed in unsanitary environments can contain bacteria and microorganisms. harmful substances, leading to the risk of infection when consumed.
• Toxic chemicals: Coffee can contain toxic chemicals such as pesticides, heavy metals or unsafe preservatives, which can negatively affect the liver, kidneys and other organs in the body.
• Allergic reactions: Some people may be allergic to unknown ingredients used to fake coffee, such as roasted soybeans or other nuts.
• Negative effects on the digestive system: Unsafe additives or bacteria in dirty coffee can cause digestive disorders, nausea, vomiting and diarrhea.
• Effects on the heart: Some fake coffees may contain uncontrolled high levels of caffeine or other stimulants that cause increased heart rate and blood pressure.
• Causes cancer: Long-term exposure to pollutants and toxins from dirty coffee can increase the risk of cancer.
• Psychological effects: Drinking fake coffee can cause stress, anxiety and sleep disorders due to unclear amounts of caffeine and other stimulants.
• Nutritional Impairment: If you drink dirty coffee consistently, you may not get the nutritional benefits of pure coffee and this can adversely affect your overall health.

Make sure that every cup of pure coffee you drink is safe and good for your health.

Dirty coffee can bring unwanted harm to our health. To avoid these harmful effects, you should buy coffee from reputable sellers and producers who have been tested and verified for

How to identify dirty coffee and pure clean coffee?

The price of coffee made from popcorn and soybeans is usually very cheap, only about 10-12,000 VND per cup or several tens of thousands of VND per kilogram. This makes consumers need to be careful and skeptical about the quality of the product. To distinguish between pure, clean coffee and poor quality coffee, some simple testing methods can be applied.

First of all, check the coffee powder. If the powder has many black iridescent particles (caramel), this shows that the quality of the coffee is not good. When boiling water is mixed into the filter, clean coffee will have a dark color initially and gradually fade later. On the contrary, poor quality coffee will produce drops that become darker and darker as the caramel beans dissolve.

These signs help consumers easily identify and choose quality coffee products, avoiding buying fake or poor quality products on the market.

Distinguishing features

	Pure coffee	Dirty coffee
1. Ground coffee
Fragrant	Pure, clean coffee has a pleasant and characteristic aroma, not mixed with any chemical flavors.	The smell of dirty coffee is often very strong and shocking because it contains many chemical flavors.
Color	Clean coffee ground has a light to dark brown color when roasted at the appropriate temperature, creating a natural and attractive color	If there are popcorn kernels mixed in, the coffee powder will be dark black. If there are soybeans, they will be opaque dark brown or opaque yellow.
Porosity	Clean coffee ground is very porous, light, spongy, easily recognizable with the naked eye.	To check the porosity, you can test by scooping two teaspoons from two different packages (one pure and one mixed with impurities) into two cups of water. Coffee ground mixed with impurities will sink faster due to its heavier density.
2. Coffee after brewing
Viscosity	Pure, clean coffee usually has no consistency. This is because pure coffee does not contain starch or additives.	Dirty coffee often contains a lot of starch from corn and soybeans, and is even added with thickeners, so it will have a higher consistency than clean coffee.
Colour	Pure coffee water is a brown to dark brown color of the wings of cockroaches, rather than a cloudy black color. This is the symbol of pure coffee.	Dirty coffee water is often dark or cloudy, this is a sign of mixing other beans such as soybeans and corn.
Foam	When brewing, pure coffee will create a uniform layer of foam, quickly collapse and have an opaque color. This foam layer is usually thicker than dirty coffee.	The foam layer of dirty coffee is often thin, has a rainbow shine and lasts a long time. This is clearly different from the thick and quickly deflating foam of pure coffee.

 

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