Shierly Chandra: Food Processing

Hello, Bloggers! How are you? I bet you're all excited for my new post. So, let's get started!

Do you all remember my last post? I did mention something about food processing, right? Now, I want to share more about it.

What is Food Processing?

Food processing is the transformation of raw ingredients, by physical or chemical means into food, or of food into other forms (https://en.wikipedia.org/wiki/Food_processing). Food processing basically involves 7 activities, such as drying, animal slaughtering, preservation, packaging, washing, sorting and pasteurization (heating and cooling).

Drying

Drying is a method to reduce or remove water from food which could inhibits the growth of bacteria, yeast and mold. Traditionally, water could be removed through evaporation but now there are ways to accelerate the speed of food drying.

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Animal Slaughtering

Slaughtering animal is a cutting technique to get finely uniform products.

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Preservation

Food preservation is directed to prevent the growth of bacteria, yeast and mold so that the food could last longer. Food preservation can be done in many ways, like fermentation, smoking, salt & sugar, and freezing.

Fermentation, is a process of preservation, using specific microorganism to produce lactic acid that can kill any bacteria.

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Smoking, is a process of preservation, using smoke to kill the bacteria. Other than that, smoking technique also increase the attraction of the food by adding some flavor and giving a tasty brown color.

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Salt & Sugar, is a process of preservation, creating an extreme environment contains high level of salt and sugar to kill bacteria.


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Freezing is a very common process of preservation that have been used everywhere. The technique here is microorganism cannot survive in the environment where has extreme temperature.

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Packaging

Food packaging has to provide protection to stabilize the quality of the food. There are many kinds of packages, such as trays, bags, boxes, cans, cartons, etc.

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Washing

Food washing is needed to separate between clean and dirty parts, so that no pathogenic microorganism get into our body.

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Sorting

Food sorting can be based on size, age, color, etc. There are two ways in food sorting, there're traditional and modern ways. Traditionally, we use our hands to sort food, but now there's a machine for sorting food that can save our time and effort.