How long can broccoli last in summer?

How to store broccoli in summer without turning yellow

Ways to keep broccoli from turning yellow in summer:

First, choose high-quality broccoli.

1. It is better to buy broccoli with bright plants and tight buds; The surface of the flower ball is not concave and convex, and it has a sense of uplift as a whole, and it is a good product without heavy feeling when picked up; If yellow flowers are found, it means that they are not fresh and taste wrong, but if the upper part is purplish, it is not stale and will not affect the taste.

2. Five indicators of high-quality broccoli:

1) The color of the vegetable plant is strong green and bright, and if it is yellowed, it means it is over-mature or stored for too long.

2) Broccoli with no unevenness on the surface of the flower ball and compact and firm buds has better quality.

3) Broccoli with heavy hand feel is a good product, but if the flower heads are too hard and the pedicels are particularly broad and firm, it means that the plant is too old.

4) If broccoli has leaves, the leaves are light green and moist.

5) Observe whether the cut of broccoli stalk is wet. If it is too dry, it means that it has been harvested for a long time and is not fresh enough.

2. Preserve in the right way:

1. Wrap broccoli with paper or breathable film (a small amount of water can be sprayed on the paper), and then put it upright in the freezer, which can keep fresh for about 1 week.

2. Tear the broccoli into small pieces, soak it in salt water for about 5 minutes, remove the dust and pests on the vegetables, then rinse and drain them with water, blanch them in boiling salt water, take them out and dry them, and then cook them directly or put them into fresh-keeping bags and put them in the refrigerator for frozen storage.

at present, how long can I buy a broccoli in Beijing in summer?

It's only a day or two, and it will turn yellow if it is kept for a long time.

how can vegetables be preserved for a long time in summer?

When summer comes, you can't buy more fruits and vegetables at home, but you always have to go to the supermarket, which is very troublesome. Here are three tips to keep fruits and vegetables for a long time! First, simple storage and preservation Simple storage methods include burial, stacking, kiln storage and ventilation storage. This method is to use the local climatic conditions to create a suitable temperature and humidity environment for fruits and vegetables, and to use the heat preservation function of soil to realize the preservation of fruits and vegetables. Need regular ventilation. This technology can be used for the storage and preservation of apples, pears, grapes and other fruits and vegetables. In regular ventilation, ozone can be adopted, which can greatly reduce bacteria and viruses. Second, cold storage is one of the main forms of modern fruit and vegetable storage, which uses a lower temperature higher than the freezing point of fruits and vegetables. It can be stored in the year of high temperature season to ensure the annual supply of fruits. Cold storage can reduce the respiratory metabolism of fruits and vegetables, the incidence of pathogenic bacteria and the decay rate of fruits, and achieve the purpose of preventing tissue aging and prolonging the storage period of fruits. However, in cold storage, improper low temperature will affect the storage life and lose the commodity and edible value. The key to prevent chilling injury and freezing injury is to strictly control the temperature according to the habits of different fruits and vegetables. During cold storage, some fruits and vegetables, such as Yali pear, need to be gradually cooled to reduce or avoid chilling injury. In addition, measures such as pre-cooling treatment before storage, heating treatment during storage and chemical treatment can all play a role in reducing chilling injury. In recent years, the new development of refrigeration technology is mainly manifested in cold storage construction, loading and unloading equipment and automatic cold storage. Computer technology has been applied in automatic cold storage, and Mudan has 1 world-class automatic cold storage in developed countries such as Japan and Italy. Third, the new method of keeping food fresh under freezing humidity is called the controlled freezing point storage method. The fruits and vegetables preserved by this method are as fresh as ever, and no bacterial deterioration or deterioration has been found, and harmful microorganisms have little reproduction. This technology has been applied in Japan. Friends, remember well! (agricultural net: Liu Yinyin)

Will broccoli go bad overnight in summer?

hello, I'm glad to answer your questions!

it won't go bad if you put it in the refrigerator overnight.

If this answer can help you, please adopt it in time. Oh, thank you!

can I still eat the fried broccoli overnight in summer? Mainly because there is no refrigerator at home? Urgent! !

you can't eat it.

what is the best variety of broccoli in summer

There are many varieties: the seedling stage of early-maturing varieties is about 28 days, from planting to harvesting for 4-6 days. The winter is weak, and the seedlings can be affected by low temperature when the stem is about 8mm thick, thus completing the vernalization process. The main varieties are Chenghai Zaohua, Fuzhou 6-day, Tongan Zaohua, Shanghai Four Seasons 6-day Yerfu and so on. The flower ball weighs .3-1kg. The seedling stage of medium-mature seeds is about 3 days, and it takes 8-9 days from planting to harvesting. The winterness is a little stronger, and the seedling stem diameter of 1mm can accept the influence of low temperature and complete the vernalization process. The main varieties are Fujian 8 days, Funong 1, Tongan short leaf 9 days, Hongdu 15, Dutch snowball, Swiss snowball and so on. The weight of the flower ball is generally above 1kg. Strong adaptability. It takes more than 1-12 days for late-maturing varieties to be planted and harvested. The plants are tall, with strong cold tolerance and winter resistance, and the seedlings can only accept the influence of low temperature when the stem diameter is more than 15mm, thus completing the vernalization process. A single flower ball weighs more than 1-2kg. The main varieties are Fujian 12-day, Tongan Chengyang late flowering cauliflower, Guangzhou bamboo species, Guangzhou Hedong late flowering, Taiwan Province Camptotheca acuminata late growing, and Wangxin species cultivated in Jiangsu and Zhejiang provinces.

how much is broccoli in the supermarket in summer?

sold by the individual, the price depends on the vegetable price

When will broccoli be planted in northern Jiangsu in summer

The normal planting time of broccoli is to start sowing in autumn and grow in winter, and it will be put on the table normally after the Spring Festival. Flowers begin to bloom in spring and the seeds mature in April and May. Seedling raising in summer and autumn: seedling raising in high temperature season from August to October. At this time, the temperature is generally above 25℃, and sometimes the temperature is 3-35℃. In addition, there are dangers of heavy rain and hail, so shade nets are used to raise seedlings in the open field. Its seedling age is generally 35-4 days. Sowing or direct hole planting can be used. The average seedling stage is about 3 days, and it takes 8-9 days from planting to harvesting. The winterness is a little stronger, and the seedling stem diameter of 1mm can accept the influence of low temperature and complete the vernalization process.

Planting time and precautions of broccoli

Broccoli doesn't have strict requirements on light, but it likes sufficient light during its growth. When the light is sufficient, the plant grows sturdily, which is beneficial to photosynthesis and nutrient accumulation, and makes the flower heads compact, bright green in color and good in quality. Too strong sunlight in midsummer is not conducive to the growth and development of broccoli.

How many days can the food in the refrigerator be kept

Many people regard the refrigerator as a "food disinfection cabinet" at home and think that the food stored in the refrigerator is hygienic. In fact, the refrigerator will breed many bacteria because it stores food for a long time and is not cleaned frequently. Although the food in the refrigerator looks fresh, it has actually gone bad.

In fact, there are three key points in storing food in the refrigerator: space, temperature and taking it out when the food is in the best state of freshness. Generally speaking, the refrigerator door frame has the highest temperature; The crisper is rarely turned over and is close to the lower floor, so the temperature there is the lowest.

the refrigerator door frame of the cold room: it is suitable for storing foods with strong antibacterial properties, such as unsealed pickles, jam, sesame sauce, sour food and condiments, and most of them can be kept for 2 months. Because the refrigerator door is often opened, warm air will enter, so it is the most unsuitable place to store perishable food, such as unsealed hot meat and milk.

upper floor of the cold storage room: suitable for storing hot meat, bacon, yogurt and hard cheese. Unsealed meat should be eaten before the shelf life. Once unsealed, hot meat can only be kept for 3 ~ 5 days; Bacon and hard cheese can be kept for 3 weeks.

the lower floor of the cold storage room: it can store foods that need to be heated quickly, such as leftovers, boiled eggs, fish and so on. In addition, leafless vegetables and fruits that are easily frostbitten are also best stored here. Cooked eggs can be stored for 7 days: leftovers should not exceed 3 days, leftovers should not stay overnight (leafy vegetables should be eaten at one time, not left), and once they feel abnormal, they should be thrown away; Fresh fish can only be refrigerated in the refrigerator for 1 day, and cooked fish should not exceed 3-4 days.

fresh-keeping box: located at the bottom of the cold storage room, with the highest humidity, it is more suitable for storing vegetables, such as green leafy vegetables, peppers and broccoli. This kind of food can be kept for about a week at most.

it is particularly worth reminding that if the food is in the following conditions, it means that it is not fresh, and it is best not to eat it.

fruits and vegetables: wet, soft and sticky fruits and vegetables should be thrown away immediately. The wilted green vegetables are only dehydrated, but they can still be eaten. It is best to cook soup. Leftovers change color and must be thrown away.

meat: cooked meat such as unopened steak has expired for 4 days, so don't eat it. Frozen meat lasts longer, but it should not be frozen again after thawing. In addition, meat that is sticky or smells strange should also be thrown away immediately.

fish: if fish has filled the refrigerator with strange smell, throw it away immediately.

dairy products: milk is the easiest to judge whether it has gone bad. If the milk is sour, you'd better throw it away. In addition, milk caking or caking is also a sign of deterioration: it is difficult to judge whether cream and cheese have deteriorated, and its safety period is generally about 1 days after the quality guarantee date. Yogurt can still be eaten after a few days of expiration, but its taste and nutritional value will be greatly reduced. Cheese and butter have the longest storage time, but to be safe, it is best to eat them within 4 weeks.

The following are some common foods that can be stored in the refrigerator (for reference only):

Fresh eggs: refrigerated for 3 to 6 days

Cooked eggs: refrigerated for 6 to 7 days

Milk: refrigerated for 5 to 6 days

Yogurt: refrigerated for 7 to 1 days

Fish: refrigerated for 1 to 2 days. Frozen for 27 days

Sausage: refrigerated for 9 days, frozen for 6 days

Chicken: refrigerated for 2-3 days. Frozen for 36 days

canned food: refrigerated for 36 days without opening cans

peanut butter and sesame paste: refrigerated for 9 days

coffee: refrigerated for 14 days

apple: refrigerated for 7-12 days