Beijing, November 18 (Reporter Han Xiao) Like the haze brought development to the air purifier industry, consumers' concerns about the safety of edible oil also brought about the popularity of domestic oil presses. Although businesses have promoted products with safer features for households, some experts told the China Economic Net reporter that self-pressing of households not only causes food safety problems in raw material selection and machine cleaning, but also causes self-extraction. The way of oil, while producing waste of resources, there is no obvious difference between the nutrition of pressed oil and the packaged edible oil on the market. Household presses are expensive The China Economic Net reporter used the domestic oil press as a search term and found a total of more than 5,000 products in Taobao. As many as tens of brands are involved, and the price ranges from 600 yuan to 3,000 yuan. According to statistics from the reporters, the average monthly sales volume of the top ten oil press brands is more than 1,000, with the highest monthly sales reaching more than 1,700. The propaganda of the oil press by the merchants is often based on slogans such as "Farewell to Ditch Oil," "Self-Crushing Oil is More Healthy," and "No Addition of Preservatives." For the evaluation of the oil press, there are consumers to leave a message, "200 grams of peanut oil consumption takes 45 minutes," "5 pounds of peanuts can be pressed oil 2 pounds of peanut oil," "I feel that the cooking is delicious." Household self-extinguishing oil is not absolutely safe Regarding the increase in household consumption demand for crush oil, Wang Xingguo, a professor at the School of Food Science at Jiangnan University, told the China Economic Net reporter that when consumers use domestic oil presses, raw material selection and equipment cleaning play a crucial role in oil safety. “For example, peanuts, although the surface looks very smooth, but the mold inside, it is difficult to distinguish only by the naked eye.†He said that the family has not been refined from the oil processing, impurities and more easily oxidized deterioration. Oil extraction equipment is not easy to clean thoroughly, residual oil and grain residue will produce mildew after oxidation, and bring greater food safety hazards. Taking peanut oil as an example, the oil production rate can reach more than 50% in the production of the company, and the oil can still be used. In contrast, household oil presses not only have low oil yields, but residues generated after use cannot be used again effectively. Wang Xingguo said that from the perspective of food safety and resource reuse, the method of ensuring the safety of edible oil by means of household oil presses is not worth promoting. There is no obvious advantage from the nutritional In an interview, the China Economic Net reporter found that consumers consider that self-pressed cooking oils at home are more nutritious and safer and healthier. This is one of the important reasons for buying domestic oil presses. In this regard, Zhang Jian, a researcher at the Nutrition and Food Safety Institute at the China Center for Disease Control and Prevention, said that there is not much difference in nutrients between households' oil extraction and the purchase of packaged edible oils. He suggested that while consumers choose fresh raw materials and pay attention to the operating environment, they must also follow the use of pressed, self-press oil is not easy to store a large number of long-term.
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