How to keep agricultural products best fresh?

There are many kinds of agricultural products, such as fruits, vegetables, etc. There are four common preservation methods, one is cellar preservation, two plastic wrap preservation, three refrigeration preservation, and four is waxing and sealing the box to keep it fresh. You can choose the appropriate preservation method according to the attributes of the agricultural products.

Putting agricultural products in the fresh-keeping layer of the refrigerator will also reduce the consumption of organic matter of agricultural products, which is conducive to prolonging the freshness time of agricultural products. For farmers or sellers of agricultural products who need to carry out large-scale agricultural product insurance, it is necessary to build a cellar to insure, such as storing apples, potatoes, ginger and other agricultural products, which is a more conventional and traditional method of placing in the cellar.

If the agricultural products are potatoes, sweet potatoes, radishes, etc., use"Soil method"It is very applicable, and our local method is: dig a circular or square deep pit on the idle land, and the depth is there.

Seven or eight meters deep, dig out the necessary suitable storage place around the deep bottom, and then put the sweet potatoes, potatoes, radishes and other things, layer by layer, and then put a large stone on the outer hole, and bury it with soil around it, and it is done, we call this "sweet potato cellar" locally"。

Agricultural products depend on what kind of agricultural products, such as melons, fruits, vegetables want to keep the best way, the best way is to have a constant temperature library to solve the problem of melons, fruits, vegetables preservation, this method is the best at present. Another method available in transportation is what we rural people say"Soil method"It can also achieve a good preservation effect by using multi-layer fresh-keeping bags.

In the past, some garlic growers saw that garlic was cheap, so they stored a few tons of garlic in the cellar, and when the price of garlic came together, they made a lot of money. When picking vegetables and fruits, try to pick them early, that is, start picking and selling them when the vegetables and fruits are eight points ripe, don't wait until they are fully ripe to pick, that will not stand your toss and rot.

Rhizome agricultural products, this must have cold storage, in the harvest to pay attention, can not let the sun shine, according to the requirements to classify agricultural products, after simple processing, such as washing, it is best to put cold storage cold, must let the agricultural products thoroughly cool, so that the time can be preserved, but also conducive to transportation.

Fresh-keeping foam box to keep fresh, what needs to be done is that vegetable farmers should harvest melons, fruits, and vegetables at night when the temperature is low overnight, and this method of preservation is suitable for short-distance transporters to be transported to the store overnight, and the effect is also very good.

Because of the needs of work, I can contact many buyers of agricultural products, and now the preservation technology of agricultural products has been very good, and the cost has been saved to a large extent, and the preservation methods of different agricultural products are not the same, and the preservation time is also long. It is not easy to keep leafy agricultural products fresh, and this kind of agricultural products is mainly a freshness, and it is not advisable to keep them for too long. It can be stored by pouring plastic wrap through with water.

Melons and fruits of agricultural products preservation, this needs to be picked can not be ripe, generally 6-8 ripe can be, cold storage can be kept, in the transportation should also be kept at a temperature not easy to be too high. The secondary processing is carried out as if it were transported to the destination.

Different products have different ways of keeping them fresh, for example, apples need to be put in the refrigerator, while bananas need to be kept in the refrigerator.

I remember when I was a child, my family kept all the autumn vegetables in the cellar to keep them fresh.

There are many types of agricultural products, and the specific preservation technology also needs to distinguish different fruits and origins.

Plastic wrap temperature and humidity.

Temperature: Leafy vegetables: 10°, peppers, tomatoes, eggplants (below 8°C, freeze damage), cucumbers.

Rhizomes 1-4° cabbage, carrots, large turnips, onions, humidity in 80 to 90 percent

(or gelatin)1, calcium stearate1, stearic acid1 (all by weight). 2. Preparation method: mix and crush the raw materials according to the formula, add an appropriate amount of water to make a paste, and then mold into a piece, each piece weighs about grams.

3. How to use: Wrap the fresh-keeping tablets in paper and scatter them in the containers for storing and transporting fruits and vegetables, and the dosage is appropriate to put 5 8 tablets per kilogram of fruits and vegetables.

Method 2: 1. Formula: sodium chlorite 25, ferrous sulfate 15, zinc oxide 10, activated carbon 50.

2. Preparation method: Mix the above raw materials evenly, add a small amount of water and stir fully, dry at 110, and make particles with a diameter of about millimeters after drying. Among them, sodium chlorite is the main agent, and sodium chlorate can also be used instead; Ferrous sulphate and zinc oxide are active ingredients, which can enhance the effect of preservatives and extend the shelf life of preservatives; Activated carbon is a planting body, and can also be used as a carrier such as alumina and silica.

This kind of preservative can not only effectively separate ethylene gas, but also remove alcohol, aldehyde and other harmful gases, inhibit the occurrence of mold, prevent decay, and is suitable for fruits, vegetables and flowers, and has a long time of action. 3. How to use: In order to facilitate the use and give full play to the role of the preservative, the preservative should be divided into small bags, packaged with breathable materials, such as paper or cloth, etc., and can also be sealed into plastic film sachets such as polyethylene.

To use, seal the preservative in a packaging container along with fruits and vegetables.

Here's an introduction to how to keep vegetables fresh, which is good.

Wrap the vegetables in plastic wrap and put them in the refrigerator box, and the refrigerator temperature should be adjusted to between 0 degrees and -2 degrees.

In my experience of working in our city village fresh food store for two years, the first thing is to ensure the freshness of the dishes, and there are some fresh food equipment in the store, and the temperature in the hall is slightly lower.

Our fresh products in the village are purchased every day, directly to the store sales, our brand positioning is, the vegetable market at your doorstep, the kitchen housekeeper around you.

The preservation and processing methods of agricultural and sideline products can take a variety of ways according to different products and storage periods. Some common methods include:1

Cryopreservation: Agricultural and sideline products such as meat, fruits and vegetables are usually preserved by cryopreservation, including placement, refrigeration and freezing at room temperature. 2.

Vacuum packaging: Placing agricultural and sideline products in a vacuum environment and removing air can prevent the worldization of oxygen dates, peculiar smells and bacteria, etc., and achieve the effect of freshness. 3.

Drying: For some agricultural and sideline products of Kuanyan dry goods, such as Chinese herbal medicines, dried fruits, etc., they can be dried, moisture-proof and sterilized by drying. 4.

Processing and production: After processing and production, agricultural and sideline products can extend the shelf life of the product and enhance the value of the product, such as processing vegetables into pickles, sauerkraut, etc., and processing fruits into jam and dried fruits. The preservation and processing methods of agricultural and sideline products need to be selected according to different products to achieve the best preservation and processing results.