Vacuum Food

According to BBC good food website, the primary purpose of packing food is to transfer oxygen out of the product. This method cannot use instead of freezing, but if we combine these method together, it will save food longer. This source is support the idea of my term paper because we can trust the information, and the author is the professor of preventing food.













Picture credit : http://www.tuvie.com/rosaline-elegant-and-smaller-vacuum-food-saver-design/

Freezing Food

On bbcgoodfood website, there were several ways to freeze food such as defrost, divide in the small, keep food below 0 Farenheit and so on. It is also telling us about food that cannot freeze.
In my opinion, this source is give a lot of knowledge for everyone about how to freezing food that I can cite in my term paper to make it more reliable.

Canned Food

I have been read about canned food. There are several parts that give important information. For instance, the reason why they created canned food, the way that they killed germ, advantages and disadvantages.

This source is very useful for people who want to know more about canned food. It is very easy to understand because they used the common words.

For me, I do not have to open the dictionary because I can guess the meaning of words which I do not know. I think I can use this source to make my term paper have more details about the method of preserving food

The History of Can Food

Canned food has created by Nicholas Appert during the Napoleonic War. After that, Louis Pasteur explained the way to kill bacteria by heating the bottoms . Then, John Hall, founder of the famous Dartford Iron Works, developed Appert’s idea by changing glass bottles to ironic bottles. The world first canned factory was located in Bermondsey, London. When the food has sold at the first time, the price was very high. It is about one-third of the average of weekly wage of a laborer. It was very expensive because cans were handmade, an expert person can make around 6 cans per hour. In my opinion, I think canned food is very useful because it can keep food for a long time and very convenient to eat. According to the passage, this make me know the reason why canned food has created.