How to store pears, the best way to preserve pears

Keep in a cool place away from wind.

How to store Sydney pears: Put the pears into wooden boxes or fruit boxes, line the boxes with thick millimeter polyethylene film bags, and then tie or seal the fruits after they are loaded. In this way, the respiration of the pear fruit consumes the oxygen in the bag, and at the same time the carbon dioxide increases, forming a low-oxygen and high-carbon dioxide environment, thereby inhibiting the respiration or other metabolic effects of the fruit.

Sydney controlled atmosphere storage environment, oxygen and carbon dioxide concentration is required within the appropriate range, and Sydney pear is extremely sensitive to carbon dioxide, when the carbon dioxide concentration is below 1%, storage for 84 days, the black heart rate is 5%, with the increase of carbon dioxide concentration, the peel color gradually turns green from yellow, the fruit gradually turns brown from white, when the carbon dioxide concentration exceeds 2%, the black heart rate reaches 100%, therefore, in the controlled atmosphere storage of Sydney, the carbon dioxide concentration in the film should be strictly controlled. The method is to put an appropriate amount of oxygen absorber, activated carbon, adsorbent, and slaked lime in the bag to adsorb carbon dioxide.

1. Natural preservation

First of all, when you buy pears, you will find that the pears will be wrapped with a layer of white foam net, and you should not remove the foam net at this time. Spread the pears flat directly after buying them and store them in a cool place, which basically guarantees that the pears will not rot for a week.

2. Store in the refrigerator

In addition to preserving pears naturally, many people choose to preserve pears in the refrigerator by simply placing them in the refrigerated area of the refrigerator and not letting them touch the water. Basically, it can be guaranteed that the pears will not spoil after half a month of refrigeration.

3. Store canned pears

Those who have the time can also make canned pears for pears for preservation, first by cutting the pears into pieces and placing them in glass jars with salt water. Then twist the cap and seal it, and it can be stored for a month.

Principles of pear preservation

When preserving pears, we have to follow several principles, the first is to sterilize the pears before preserving them, and only the bacteria on the pears can ensure the normal storage of pears. If the bacteria are less invasive, the rotting of the pears will be delayed.

The reason why pears are still ripe when picked is because pears are always releasing ethylene gas. This gas can ripen pears, and pears are naturally not suitable for preservation after they are ripe. So before preserving the pears, you can minimize the ethylene on the pears to make the pears ripen more slowly.

When storing pears, it is best to choose a high humidity environment, so as to reduce the loss of water on the pears and malaise. Of course, it is easier to breed bacteria when storing pears in a high humidity environment, so it is necessary to do a good job of not killing bacteria in order to preserve pears for a long time.

1. Refrigerator storage or refrigerator storage, the suitable temperature of refrigerator storage is minus 1 degree to 1 degree, and the maximum temperature is not more than 5 degrees.

2. It is best not to store for more than 5 days. Do not wash before putting the pickpocket.

3. Wrap paper preservation, wrap pears in winter with 2-3 layers of wrapping paper, and store them in a cold and ventilated place.

4. If the weather is warmer, this macro will be stored in the refrigerator for 2 weeks.

1. Pears are stored in the refrigerator, the most suitable temperature is -1 degree Celsius to 1 degree Celsius, and the maximum is not more than 5 degrees Celsius.

2. In winter, you can wrap the pears in 2-3 layers of newspaper or soft paper and store them in a cold and ventilated place, if the weather gets warmer, put them in the refrigerator for preservation, and they can be stored for two weeks in this way.

3. Wipe the moisture on the surface of the pear first, then seal the pear with plastic wrap, and finally put it in a plastic bag and seal it in a cool place to dig up the manuscript for preservation, or refrigerate it. This method can be kept for about a week.

If you want to preserve fragrant pears, what are the ways to store them? The suitable storage temperature of fragrant pear is -1 0, which is lower than the storage temperature of Ya pear, crisp pear, apple pear, etc., because the fragrant pear has strong low temperature resistance, even if there is a slight frost damage, it can be slowly recovered, and the color, aroma and taste do not change much. If the storage temperature of fragrant pears is too high, the storage period will be shortened; If the storage temperature is too low, it is easy to produce cold injury, and the functional enzymes in the fruit are destroyed, which makes the fruit browning and the storage period shortened.

Therefore, too high and too low storage temperature will reduce the quality of fragrant pears.

In this way, they can be stored in an air-conditioned refrigerator, which is not limited by natural conditions, which can effectively reduce the incidence of pathogenic bacteria and the decay rate of fruits, and at the same time, it can also better contract the respiratory and metabolic processes of Korla fragrant pears, prevent tissue aging, and thus prolong the storage time of fragrant pears. When buying pears, be careful not to eat them, not to touch moths, and not to have sagging scars, so that pears can be stored for a long time, and there is also the problem of self-preservation. It is usually stored in the refrigerator of a breathing paper or refrigerator.

The suitable temperature for storage in the refrigerator is -1 1.

How to preserve pears for a long time. Sterilization before storage: Sterilization and preservative treatment of pears before storage can reduce the invasion of bacteria and microorganisms with rot of pears.

Ethylene removal: Ethylene is the enemy of pear storage and preservation. The maximum temperature does not exceed 5; If the temperature in the north is cooler, Korla fragrant pears can be stored outdoors.

If you're in the South, you'd better wrap it in newspaper and keep it in the freezer. Pears are usually frost-tolerant, but the temperature must also be controlled. The cryopreservation time of Xiangkuer pear can be stored in a high carbon dioxide environment, and most varieties are sensitive to carbon dioxide.

Like apples, pears can also be stored in storage rooms and basements for short periods of time, preferably no more than days. Do you know the effect and function of pear's storage and preservation before placing it? Are pears nutritious after boiling for a long time?

Boiled pears are a common form of eating pears. A lot of people like to eat it that way, but I've never eaten it that way.

Aqueous solution of potassium permanganate, bleaching powder solution of 5, honeycomb coal residue or activated carbon after combustion, plastic woven bag.

2. Preparation of preservative. Soak the residue or activated carbon after combustion of honeycomb coal with 5 potassium permanganate solution for several hours, then take it out, drain the solution, and dry it in a dark and ventilated place until it is semi-dry, and make small pieces or small particles, which is a preservative.

3. Disinfection of plastic woven bags. Wash and disinfect the plastic woven bag with 5 pieces of bleaching powder and dry it in a cool place.

4. Bagging Put the lemon and the preservative into a plastic bag according to the weight ratio of 4:1, and store it in a low temperature and dark place with a sealed mouth, and the temperature is 0--12. Lemons can be stored in this way, and the storage period can be up to 200 days.

1. All-round fresh-keeping liquid preservation method: American researchers have recently invented an all-round fresh-keeping liquid for fruit preservation, and obtained a U.S. patent.

2. According to reports, this fully functional fresh-keeping liquid is prepared by adjusting the pH value of 3 citric acid or 75 --80 concentration of food-grade orthophosphoric acid to below 3 5, adding 30 --40 sucrose, sodium benzoate or ascorbic acid below 0 3, and 0 03 calcium dicalcium phosphate. The use of this preservative can not only prevent the fruit from fading, inhibit the growth of bacteria, but also prevent the fruit from shrinking and cracking, keep the flesh texture unchanged, improve the sugar content and flavor as new.

You can choose to wrap the pear with newspaper for preservation, this method is a preservation method commonly used in the fruit store, it is more effective to save in a short time, and the operation is very simple, as long as the pear that needs to be preserved, wrap it completely with a large newspaper, and then put it in a cool and dry place for preservation, generally there will be no change in about three or four days, but if the time is too long, there may be a deterioration.

2. Refrigerate and store.

If you want to preserve the pears for a longer time, then you can also choose to refrigerate the pears and preserves, the pears are refrigerated and preserved, the time is relatively long, and this preservation method is not complicated, as long as the pears that need to be preserved are sealed in a plastic bag or wrapped in plastic wrap, and then put them in the refrigerator room of the refrigerator and directly refrigerated to preserve them, and there will be no change in this way for preservation.

3. Pay attention to the preservation of Yali pears.

We must pay attention when preserving the pear, although it is preserved, but when you take it out to eat, you should also observe it, whether there are black spots on its surface or whether there are other signs of deterioration, if there is, then this kind of pear can not be eaten, so even if it is preserved, it is also necessary to observe whether there is any abnormality in him, which needs to be paid attention to, once the deteriorated pear can not be cured.

The pears are placed in a plastic bag. Drop the liquor and tie the bag tightly and place it in a cool place.