Can frozen pears from Northeast China be replicated using a refrigerator
2024-01-11
Recently, the tourism market in Harbin, Heilongjiang has been hot, and frozen pears, as a specialty of Northeast China, have attracted the attention of many tourists. Some restaurants even cut up frozen pears and set them on a plate when entertaining southern tourists, winning praise from tourists for their exquisite dining experience. This has also made frozen pears the preferred food for "southern potatoes" to check in to Harbin. How did the black frozen pear come from? Frozen pear is one of the characteristic fruits of winter in northern China, usually made by freezing Huagai pear, Qiubai pear, white pear, and Jianba pear. The unique climate of ice and snow nurtures it. Eating a bite under the indoor heating in Northeast China, it is fresh, sweet, juicy, and melts right into the mouth. The temperature varies in different regions, and there are slight differences in the production methods of frozen pears. Taking Heilongjiang as an example, late maturing pear varieties that mature from late September to early October are generally selected. After picking, they are placed in cardboard boxes or plastic baskets and stored in shaded greenhouses or well ventilated indoor areas. There are also ways to directly lay plastic sheets on the ground and place them on it, or store them in piles until the temperature drops in winter and they naturally freeze. Source | Wang Yang, Wang Wenhui, Tong Wei, et al. Quality Analysis of Frozen Pears Based on Color, Aroma, and Texture [J]. Frozen pears from Chinese Agricultural Science are named after their freezing, and are known as "outdoor natural refrigerators" in Northeast China. The water in the frozen pears immediately solidifies, and phenolic substances are also destroyed, making them "cool" and the taste even sweeter. During the winter storage process, the cell structure of frozen pears is destroyed, and the polyphenol oxidase in the cells combines with oxygen to form colored substances, resulting in a black color on the surface of frozen pears. With a refreshing and greasy bite, the Northeastern friend may not know how to take a bite when facing the hard frozen pears. The Northeastern friend has already taken out a basin of cold water, washed the pears, and left them to soak. The method of thawing with cold water is commonly referred to as "slow". Due to the freezing point of the frozen pear flesh being below zero degrees, a thin layer of ice will form on the surface of the frozen pear during the "slow" process. After fully thawing, crush it with a spoon and it can be eaten. The process of pounding the ice shell can also be a fun experience when eating frozen pears. In addition, frozen pears can also be thawed directly at room temperature or using a microwave for thawing. After thawing, the frozen pear flesh loses its water support and becomes soft and sticky. Generally, the outer skin is bitten into a small bite to suck on the pear juice, and then eaten. Before and after the Spring Festival, the Northeast region was in a cold winter, and it was inevitable that there were plenty of fish and meat in the diet. Eating a frozen pear after a meal not only relieves greasiness, but also clears heat, benefits the throat, relieves cough, and relieves asthma. Frozen pears have relatively complete nutritional components but should be consumed in moderation. They are made by freezing fresh pears at low temperatures. At low temperatures, the enzyme activity in the fruit decreases, slowing down the breakdown and loss of nutrients. Meanwhile, rapid freezing can reduce the formation of ice crystals, thereby reducing damage to cellular structure and helping to maintain the integrity of nutritional components. Frozen pears effectively retain their vitamins, minerals, and other nutrients such as vitamin C, vitamin B1, B2, etc. In addition, they are also rich in minerals such as potassium, magnesium, calcium, etc. The dietary fiber in frozen pears can promote intestinal peristalsis, aid digestion and bowel movements, and reduce constipation problems. It should be noted that due to the cool taste of frozen pears, excessive consumption may cause certain irritation to the gastrointestinal tract. Therefore, it is recommended to consume them in moderation to maintain gastrointestinal health. Frozen Pear Tongs
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Source：gmw.cn
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