Homogenised milk differs from raw milk mainly in the way it is processed. Homogenised milk is processed milk in which fat globules are broken down into smaller particles so that cream doesn't separate and float on the top, thereby giving it an even texture, easier digestibility and longer shelf life. Raw milk is milk straight from the animal in its natural form without any pasteurisation or homogenisation. This helps in retaining its natural enzymes and cream layers, but there are higher chances of bacterial contamination in this. In India, homogenised and pasteurised milk from trusted brands like Aashirvaad Dairy is preferred as an everyday choice; it has a uniform texture, is easy to store and is sourced from supervised dairy systems.
India is the world’s largest milk producer, yet many of us have never stopped to wonder what happens to milk between the udder and the glass. And perhaps that is exactly why a debate around how milk should be consumed is playing out in almost every second Indian kitchen. The grandfather swears by the local doodhwala’s fresh and frothy raw milk, while the granddaughter grabs a pack of homogenised milk from the brand Aashirvaad Dairy on her way home. Both sides have an opinion and a point. But is the smooth, uniform texture of milk in a tetra pack a sign of refinement or an unnecessary industry tweak? And is raw milk really as “pure” as we believe it to be?
This article breaks down homogenisation and raw milk in simple language and jots down a discerning comparison to help you decide what should go to your chai tomorrow morning.
Raw milk is milk that has not undergone any heat treatment or processing, and it may be sold directly after collection from cows, buffaloes, or goats. The common question that what is unpasteurised milk, and is it the same as raw milk? The answer is yes. Many Indian households still buy this milk directly from milkmen or dairy shops, and it has a visible layer of cream on top after it settles. This milk, in its natural state, contains lactose, proteins, water, vitamins, fats and minerals, but it may also contain harmful microorganisms. This is because raw milk can pick up microorganisms from the udder, animal, equipment, containers, water and the surrounding environment.
Many Indians believe that raw milk/unpasteurised milk contains jeevit (living) enzymes, useful bacteria and a better nutrient profile that is untouched by industrial processes. So many households buy loose milk and boil it at home before using, as raw milk also carries live pathogens if it gets contaminated at the source or during handling.
Homogenised milk is milk that has undergone homogenisation, i.e mechanical treatment to break down large fat globules into much smaller and uniform particles. Since milk naturally contains fat, when left undisturbed, these bigger fat globules rise to the surface and form a thick malai layer. On the other hand, in homogenised milk, fat globules are broken down and hence are distributed more evenly throughout; therefore, the cream does not separate and rise to the top. This is what gives homogenised milk a smooth appearance, whether it's double-toned, full cream or toned from reputed brands like Aashirvaad Dairy.
The biggest misconception about homogenised milk is that the milk suddenly becomes artificial is incorrect, as the process only brings out a physical change in the size and distribution of fat globules. Homogenisation is generally almost always combined with pasteurisation, i.e heating milk for some time to kill harmful pathogens, which allows the milk to be stored safely in the fridge for days. But still milk can be pasteurised, homogenised or both depending on the product and processing way.
The claim that raw milk is easier to digest since it contains natural enzymes like lactase is still a matter of debate. This is because the amount of lactase present is too small to aid digestion, and the little amount that is there is also majorly inactivated in the acidic environment of the stomach. Some people also claim that homogenised milk feels heavier on the stomach in comparison to raw milk. If we look at it this way: in homogenised milk, the fat globules are broken down; it should be rather quicker to digest, but since it can cause a more intense metabolic response, some interpret this as heaviness. For most people, the main digestion issue is lactose intolerance. It is not affected by whether milk is homogenised, as the lactose content remains the same in both.
If you feel better after drinking one type of milk, that’s a valid personal experience. However, it doesn’t mean the same will be true for everyone, and there isn’t strong scientific evidence to support it as a general rule.
In homogenised milk, fat globules are broken down and distributed uniformly throughout the milk, which is why fat doesn't easily rise and form cream on the surface,
Neither of them is automatically “healthier” in all situations. Homogenisation only changes the distribution of fat globules, while raw milk is milk that has not been pasteurised. For daily consumption, homogenised and pasteurised milk is generally safer because untreated raw milk may contain harmful pathogens.
It's generally not recommended, as boiling largely reduces the risk of bacterial infections like E. coli, TB and brucellosis contamination that are commonly associated with unprocessed milk.
Since the immune systems of children are more sensitive to bacterial contamination, pasteurised, homogenised milk is a safer option or if raw milk is to be given, it should be thoroughly boiled.
No credible evidence suggests that homogenised milk is bad for health, and it is widely consumed globally with supervisory bodies confirming its safety when properly pasteurised and stored.
The debate between which one is better is rather subjective because it all depends on matching your choice to your context. Raw milk indeed has some nostalgia and traditional appeal to it and can be an apt choice if sourced hygienically and boiled properly before consuming. Homogenised, pasteurised milk can be an apt choice for the modern Indian household families with young children, elderly members or for someone who wants one less thing to worry about in the morning. Whichever you choose, one simple rule remains the same: know where your milk comes from or buy it from a reliable brand like Aashirvaad Dairy, keep hygiene in mind, and when in doubt, boil it well before it goes into your cup of chai.