n7 750x638 - How To Preserve Your Food?

How To Preserve Your Food?

Let’s start by doing some research into why food spoils. There are quite a few reasons why food spoils, and the ones we can notice on a day-to-day basis are temperature and humidity, which is why there are often reminders to store it cool and dry. Too high a temperature or too much humidity can make food spoil very easily. 

Temperature and humidity are the most important factors influencing the growth of microorganisms. Therefore, from a biological point of view, food spoilage is due to the growth of microorganisms at the right temperature and humidity, which then decompose the nutrients in the food, destroy the original structure of the food, produce some other harmful substances, and release volatile substances, so the spoiled food is rotten and smelly, and some of them even grow worms. There are a few knowledge you may have to take into consideration. 

n8 - How To Preserve Your Food?

1. Vacuum Preservation

When food comes into contact with the air, it is easily oxidised and can harbour a variety of bacteria, which can accelerate deterioration. This is why vacuum preservation can be used. The most common method is to use a compressor to extract air from a sealed bag or box such as Tupperware airtight container to create a compressed vacuum, which reduces the contact between air and food and makes it easier to preserve.

2. freezer Preservation

As mentioned earlier, when the temperature is high, microorganisms or enzymes are more active and bacteria tend to grow and multiply, so food spoils more quickly. This is why the fridge is the choice of most households. Theoretically, the lower the temperature, the less active the bacteria and enzymes will be or even inactivate them, but it is not a good idea to use a quick freeze, which can also damage the taste of some foods. However, it is not a good idea to use flash freezing as it can also damage the taste of some foods.

3. Dehydration And Drying For Freshness

Humidity has an effect on the preservation of food, as does moisture. Generally speaking, the higher the moisture level, the more conducive it is to the growth of bacteria and micro-organisms, and the shorter the natural shelf life. This is why dehydrating and drying for storage is also a common method. In ancient times, when people wanted to preserve food for later use at harvest time, they used to dehydrate and preserve it in the form of sun-drying. Most of the various types of dried meat, vegetables and seafood that we eat nowadays evolved from such causes.

4. Boil To Sterilize And Preserve Freshness

For foods that can be boiled without affecting the general taste and nutrient content, they can be preserved by boiling and sterilising them, which will have a delaying effect on their shelf life.

Basically, most foods in life can be preserved using the above principles, and by understanding the causes of spoilage and the qualities of the food itself, you can carry out targeted preservation measures.

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