Food preservation is an important issue related to food safety and nutritional preservation. Proper storage methods not only extend the shelf life of food, but also reduce food waste.

This article will cover some effective food preservation tips and methods.

Basic principles of food preservation

Before discussing specific preservation methods, it is necessary to understand the basic principles of food preservation. The main cause of food spoilage is the growth and reproduction of microorganisms, therefore, controlling the growth of microorganisms is the key to prolonging the shelf life of food.

1. Control the temperature

Low temperatures can slow down the growth rate of microorganisms, therefore, storing food in the refrigerator or freezer is an effective way to extend shelf life.

2. Control humidity

3. Avoid contamination

How to store it

1. Keep refrigerated

• Foods that are suitable for refrigeration: most fresh vegetables, fruits, dairy products, leftovers, etc.
• Precautions: The suitable refrigeration temperature is different for different foods, and should be adjusted according to the characteristics of the food.

2. Cryopreservation

• Foods suitable for freezing: meat, fish, fruits, vegetables, etc.
• Precautions: Food should be divided before freezing to avoid repeated thawing.

3. Store dry

• Foods suitable for drying: cereals, legumes, nuts, etc.
• Precautions: Dry storage should be placed in a ventilated, cool and dry place to avoid moisture.

4. Marinate and preserve

• Foods suitable for pickling: meat, fish, vegetables, etc.
• Precautions: Sufficient salt or sugar should be used during the curing process, as well as appropriate preservatives.

5. Vacuum packing

• Foods suitable for vacuum packaging: meat, seafood, cooked food, etc.
• Precautions: Vacuum packaging can reduce oxygen exposure and extend the shelf life of food.

6. Stored in jars

• Food suitable for canning: fruits, vegetables, meat, etc.
• Precautions: During the canning process, ensure that the jar is well sealed to avoid the entry of air and bacteria.

7. Chemical preservation

• Foods suitable for chemical preservation: Some processed foods.
• Precautions: Food safety standards should be followed when using preservatives and antioxidants.

8. Store away from light

• Foods suitable for dark storage: some oils, dried fruits, etc.
• Precautions: Light exposure accelerates the oxidation of fats in food, leading to food spoilage.

epilogue

The key to extending the shelf life of food is to control the growth and multiplication of microorganisms and slow down the loss of nutrients from food.

With the above preservation methods, we can effectively extend the shelf life of food and reduce food waste while maintaining the nutritional value of food.

Hopefully, this article will help you better preserve your food and enjoy a healthy eating life