How to Check for Pure Milk: Milk is considered a wholesome food. It is a part of the daily diet for people of all ages, from children to the elderly. It contains calcium, protein, vitamins, and numerous essential nutrients, making it vital for bone health, muscle strength, and overall well-being.
However, milk adulteration has become a major issue today. Driven by greed for higher profits, some people adulterate milk with substances such as water, detergent, starch, synthetic chemicals, and urea before selling it. Such adulterated milk can be harmful to health.
Consuming adulterated milk can lead to stomach-related issues. It can cause digestive disorders, affect the kidneys and liver, trigger allergies, hinder children’s growth, and lead to other health problems. Therefore, it is crucial to know whether the milk is pure or adulterated. The good news is that you can easily detect various types of adulteration at home without expensive lab tests. Simple home-based methods can help identify the presence of water, starch, detergent, and urea. If you detect any adulteration, you can file a complaint with the FSSAI.
What are the most common adulterants in milk?
Milk is subjected to various types of adulteration. Some methods are used merely to increase the volume, while certain chemicals are added to make the milk appear thicker or whiter. Common adulterants include water, starch, detergent, urea, chemicals used to create synthetic milk, artificial fats, skimmed milk powder, glucose, salt, and other chemical substances.
How can you identify adulterated milk at home?
Even without laboratory facilities, you can make a preliminary assessment of milk’s purity using simple home tests. For instance, you can detect water adulteration using the ‘flow test’. Take a clean, smooth plate, tile, or glass surface and tilt it slightly. Place a drop of milk on it.
How to interpret the result
If the milk is pure, it will flow downwards slowly, leaving a faint white trail behind. If the milk has been diluted with a large amount of water, it will flow rapidly and leave almost no white layer or trail. This test provides an initial indication of whether the milk is diluted.
Detecting detergent with the Shake Test
Some people add substances like detergent to milk to make it appear frothy and thick. To check for this, take some milk in a bottle or a lidded container and shake it vigorously. Regarding the result: if detergent is present, a significant amount of foam will form and persist for a long time. Pure milk produces only a small amount of foam that dissipates quickly.
Detecting starch adulteration with the Iodine Test
Some people add starch to milk to make it appear thicker. To test for this, first boil the milk and let it cool down completely. Then, add a few drops of iodine solution. If the milk turns blue or dark, it indicates the presence of starch. If there is no change in colour, the milk is free from this adulteration.
How to test for urea?
You can also check for urea adulteration in milk. To do this, mix soybean powder into the milk and let it sit for a while. Then, dip a piece of red litmus paper into the mixture; if the paper turns blue, it indicates the presence of urea. If there is no colour change, urea is not present.
**What is synthetic milk?** It is worth noting that in some instances, fake or synthetic milk is produced by mixing various chemicals, oils, urea, and fats to make it resemble genuine milk. Consuming such milk continuously can be harmful to health.
What are the harmful effects of drinking adulterated milk?
Regularly consuming adulterated milk can lead to serious health issues. These include stomach pain, vomiting, diarrhoea, indigestion, gas, allergies, skin problems, and adverse effects on the kidneys and liver. It can also negatively impact children’s growth and lead to other long-term health complications. Children, pregnant women, and the elderly are particularly vulnerable to these effects.
How can you check the quality of packaged milk at home?
Many people believe that packaged milk is always completely safe. While it is true that packaged milk usually undergoes quality checks before reaching the market, improper storage, expiration, or other issues can compromise its purity.
Upon opening a packet of milk, the first step is to smell it. If it emits a sour, bitter, or strange chemical odour, the milk has spoiled. Next, you can taste the milk; if the flavour differs from the norm, it is not safe to consume. Additionally, examine the layer of cream and observe the milk’s colour.
How to file a complaint with FSSAI?
If you suspect adulteration in any food product—especially milk—you can utilise FSSAI’s grievance redressal mechanism. First, you can download the **Food Safety Connect** app on your Android or iPhone; filing a complaint through the app is easy. You can also lodge a complaint via FSSAI’s official grievance portal. Ensure you provide all the necessary information when filing the complaint.
Conclusion
Milk is an essential part of our daily diet; therefore, verifying its purity is crucial. Adulterants such as water, starch, detergent, and urea can be initially detected using simple home-based methods like the flow test, shake test, iodine test, and urea test. However, these tests provide only preliminary indications, and a laboratory analysis is necessary for a definitive assessment.