How to store vegetables for longer periods of time

The main methods to preserve vegetables for a longer period of time include refrigeration preservation, vacuum sealing, drying treatment, dark storage, and partitioned storage.

1. Refrigeration and Preservation

Wash and dry the green leafy vegetables, then place them in a preservation bag with a layer of kitchen paper inside to absorb moisture, and place them in the drawer of the refrigerator's refrigeration compartment. Root vegetables such as carrots and celery can be cut into pieces and soaked in clean water for refrigeration. The water should be changed every two days. It is recommended to maintain a refrigeration temperature of around 4 degrees Celsius to avoid temperature fluctuations that may cause vegetables to freeze or rot.

2. Vacuum Sealing

Using a vacuum sealing machine to remove air from the packaging can effectively inhibit the growth of aerobic bacteria. Suitable for perishable vegetables such as beans and broccoli, vacuum packaging and refrigeration can extend the shelf life. Pay attention to drying the surface moisture of vegetables before vacuuming, and use food grade materials for sealed bags. Some vegetables such as mushrooms may change in texture after vacuum treatment, and it is recommended to consume them in the short term.

3. Drying Treatment

Hang onions, garlic, etc. in a well ventilated place and let them dry naturally in the shade, or use a food dryer to dehydrate them at low temperatures. Dried vegetables should be placed in sealed jars and treated with food desiccants to prevent moisture. Tomatoes can be made into sun dried tomatoes, but when the moisture content decreases, microorganisms find it difficult to reproduce. During the drying process, direct sunlight should be avoided to prevent nutrient loss.

4. Store in the dark

Potato, sweet potato and other tuber vegetables should be wrapped in black plastic bags and stored in a cool place. Light will promote germination and produce solanine. Ginger, garlic, etc. can be buried in dry sand and stored away from light. All vegetables stored away from light should be regularly inspected to promptly remove sprouted or moldy individuals.

V. Partition Storage

Different vegetables should be stored in different categories, and fruits that release ethylene such as apples and bananas should be placed separately from vegetables. Mushrooms need to be individually packaged to prevent spore contamination of other ingredients. Leeks and scallions with strong odors should be isolated in sealed boxes. Cooked food and fresh vegetables in the refrigerator should be placed in layers to avoid cross contamination.

When storing vegetables in daily life, appropriate methods should be selected according to the type, and the spoiled parts should be checked and processed regularly. Try to maintain the integrity of vegetables before refrigeration, as cleaning can damage the surface protective layer and accelerate spoilage. Root vegetables can be preserved in soil to extend their shelf life, and should be cleaned before consumption. Some vegetables such as cucumbers and green peppers are not tolerant to low temperatures, and it is better to store them at room temperature with ventilation. Mastering these techniques can effectively reduce food waste and ensure a balanced diet.