The act of pasteurization is one that has allowed the food industry to ship products that spoil easily- and keep their shelf life high enough to allow for consumers to use them. The process is compared to other technologies such as homogenization and sterilization.
One may notice that pasteurization isn’t the best in the taste category. While pasteurization is necessary and still makes a great end product, there are those that say the process takes too much flavor out of the item being processed. Where milk is concerned, one can taste the difference by selecting different brands of milk based on how they were sterilized.
Taste isn’t such an issue in the end. The real fact to consider is that pasteurization has been shown to take out helpful enzymes, vitamins, and minerals that are in milk. Often, the milk you see in stores will have been supplemented with such things to put the healthy materials back into the milk. You may see special fortified milk types, although they cost more money.
Some types of pasteurization can make milk last several months without going bad, as you would see with your average grocery store milk container after a week of opening it. Through special processes such as ultra heat treatment, or UHT, and aseptic packaging, milk can last much longer on the shelf. Of course, if you ever opened the carton, you should obey the throwaway date listed on the container.
The amount of items that the pasteurization process applies to is vast. One would be narrow minded to assume that milk was the only industry that pasteurization serves. There are plenty of liquids, from soy sauce to marinade sauces, and also foods that you might not even think get sterilized. Foods would include crab, cheese, and some nuts. It extends the shelf life of each product dramatically, and with new packaging producers can keep food better for longer periods of time.
In relation to homogenization, pasteurization is seen as a healthier alternative. Homogenization is a type of sterilization that instead attempts to make the entire milk product the same throughout the body of liquid in the container- effectively “smashing” fat molecules into each other. In the process, proteins and other good materials are being made worthless as they are going to bypass the digestion process, and not be absorbed as they normally would.
In Conclusion
Heavy machinery and small machinery alike achieve pasteurization. Finding either will be a tough process, however. Start looking on the Internet for brokers who can help out, start going to local auctions, or buy new from a manufacturer to get started in pasteurization.
Learn more on pasteurizers and pasteurizer.
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