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There are a couple of methods for pasteurisation:
1. Batch pasteurisation
In this method milk is heated in a tub while stirring to not less than 63°C for at least 30min. This is followed by cooling within 30min to below 5°C.
This method is less commonly used today.
2. High temperature short time pasteurisation
Using a continuous system (stainless steel pipelines) milk is pumped through heat exchangers for pasteurisation at 72°C for 15 seconds. After this it is cooled down to below 5°C quickly through heat exchangers.
The more the temperature is increased, the less time is needed for the pasteurisation to be effective.
After pasteurisation, the standard test to see if it was effective is the phosphatase test.
What else can I help you with?
Who discovered how to make milk safe to drink?
Louis Pasteur, which is why we call it 'pasteurising' the milk, by heating it to 72oC.
Why is pasteurised milk used for making yohgurt?
Pasteurising kills all microorganisms in the milk then you introduce the bacteria that makes the yogurt.
How do you make lukewarm milk?
Warm cold milk slightly is one way to make it lukewarm. Or leave the too warm milk to cool to lukewarm. Or add cold milk to reduce the too warm milk to lukewarm. I'm not sure whether the question is actually about pasteurising raw milk?
Why does high temperatures reduce bacteria added to milk?
This is Known as Pastuerisation A process where milk is rapidly heated killing bacteria and then just as rapidly cooled again this not only protects health against bacteria but also extends the shelf life of the milk
What is the procedure milk undergoes before reaching us for consumption?
Pasteurization
What food is milk?
yogurt is a type of spoiled milk. believe it or not but is alcually prduced in the same procedure as cottage cheese but it is ground up more.
What food is rotton milk?
yogurt is a type of spoiled milk. believe it or not but is alcually prduced in the same procedure as cottage cheese but it is ground up more.
What is the pasteurising time and temperature for pasta sauces?
Harmful food microbes, including bacteria and viruses, are killed when heated to 65°C (150°F).
Does breast reduction procedure harm the milk ducts and create a problem in the future when i need to breastfeed my baby?
It depends whether they have taken out your milk ducts or not. In the Uk, they often do whereas in France for instance they don't.
What is the first and most important procedure to do when a patient swallows poison?
Call medics; have the person drink milk; try to induce vomitting.
What is the procedure for preparing potentised gold or Aurum Metallicum in Homeopathy as gold is insoluble in most solvents?
trituration with sugar of milk powder
Why milk is pasteurised?
The person who originally answered did not know the meaning of "cost effective" and needs to get off his/her high-horse.America has lots of cows and lots of people to drink milk. Therefore it is feasible to only pasteurize milk and not fully sterilize it. Sterlizing milk kills not only bad bacteria, but good as well, including active bacterias such as acidophilus which aid in digestion. It also kills many other vitamins in the milk. America has the dairy farms, shipping, and ample refrigeration to keep the milk fresh long enough to drink with only pasterization. Countries/areas that are much larger, that have fewer cows, or do not have the infrastructure to ship/store milk for long periods of time (like China, Alaska, and much of Europe) must sterilize the milk in order for it to keep. The original "answer-giver" was also mistaken in saying that coffee creams "are just as tasty if not more so, since they are actually more pure." It is tasty because it it has a very high sugar content.AnswerIt's more cost effective for dairy farmers to release the product in such a condition that it will not last long. Small packages of coffee cream and some other dairy products actually are sterilized. They are just as tasty if not more so, since they are actually more pure. Honestly, it's an outrage.
