Frost

Moldy tea is harmful to health and should not be consumed, we all know this. However, sometimes tea enthusiasts express difficulty in distinguishing between moldy tea, "golden flowers," and "white frost." What are the differences between moldy tea, "golden flowers," and "white frost"? Moldy Tea Tea leaves that have gone moldy generally grow white fuzz and emit a musty smell. Severely moldy tea can become rotten and clump together, with green fuzz growing on top, and Pu'er tea may also develop black mold. However, some premium varieties such as Biluochun, Mao Feng, Yunwu tea, Dian Hong, Tuocha, Pu'er, and others, have white down on their leaves. This is due to the tea's tenderness and not the white fuzz that grows when tea has molded. According to Academician Chen Zongmao of the Chinese Academy of Engineering and researcher at the Tea Research Institute of the Chinese Academy of Agricultural Sciences, tea becomes moldy due to contamination by Penicillium and Aspergillus, which can produce toxins like aflatoxin (classified as a Group 1 carcinogen by the International Agency for Research on Cancer of the World Health Organization, it is an extremely toxic substance). Aflatoxin is heat-resistant and cannot be eliminated through high-temperature cooking.…

Basic Introduction to Fengjie Navel OrangeFengjie navel orange is a specialty product of Fengjie County, Chongqing City, and a geographical indication product of China. The cultivation of citrus in Fengjie County dates back to the Han Dynasty, with a long history. The production area is located in the Three Gorges Reservoir Area, which has three ecological advantages for citrus cultivation: no typhoons, no frost damage, and no quarantine pests. The introduction and cultivation of locally selected mid-season varieties such as "Fengjie Navel Orange" (72-1) and late-season navel oranges (95-1) make this region one of the few special ecological zones for navel oranges in the world. Nutritional ValueAccording to tests conducted by the Ministry of Agriculture's Citrus Seedling Quality Monitoring and Testing Center, the shape index of Fengjie navel oranges is 0.98, with a single fruit weight ranging from 185 to 250 grams, 50% juice content, and 72% edible portion. The flesh is crisp and tender, easy to chew, with 9.74 grams of sugar, 0.72 grams of citric acid, and 47.9 milligrams of vitamin C per 100 milliliters of juice. The soluble solids content is 11.6%, with a sugar-to-acid ratio of 13.5:1, maturing in late November. Due to Fengjie County being…

Basic Introduction to Watercity Walnuts According to introductions, the Watercity walnut is also known as “Xue Ning Hong,” which gets its name from producing red flowers and having frost and snow resistance characteristics. Ordinary walnuts produce yellow flowers and typically take 11 years to mature. In contrast, “Xue Ning Hong” produces red flowers, can flower and bear fruit in the second year after planting, and flowers and bears fruit multiple times a year. While ordinary walnuts have fruits that grow in clusters with only two or three nuts per cluster, “Xue Ning Hong” walnuts have fruits that grow in spikes, with each spike bearing around 30 nuts. This type of walnut is known for being high-yielding, stable, and having a good taste. It flowers and bears fruit multiple times a year and has resistance to frost, snow, and pests, making it suitable for promotion and application in temperate and cool mountainous regions. The Watercity walnuts are grown across 25 towns (sub-districts) and 164 administrative villages (residences, communities) in Huale Town, Yueshe Town, Aga Town, Bide Town, Dongdi Sub-district, Doge Town, Doujing Town, Fare Town, Guobuji Town, Houchang Town, Huajia Town, Jichang Town, Jianshan Sub-district, Laoyingshan Sub-district, Longchang Town, Miluo Town,…

Basic Introduction to Dechang MulberryDechang Mulberry is a specialty of Dechang County, Sichuan Province. Dechang has a subtropical highland monsoon climate with an annual average temperature of 17.7 degrees Celsius, average annual precipitation of 1049 millimeters, frost-free period of over 300 days, and annual sunshine duration of 2147 hours. Due to its abundant light and heat resources and superior climatic conditions, the mulberries produced here have high sugar content and excellent taste. Therefore, on February 11, 2015, the original General Administration of Quality Supervision, Inspection, and Quarantine approved the geographical indication product protection for "Dechang Mulberry." The protected area includes 13 townships currently under the jurisdiction of Dechang County, Sichuan Province: Yonglang Town, Jinchuan Township, Laonian Township, Le Yue Town, Xiaogao Township, Malizhen Town, A Yue Township, Dezhou Town, Liusu Township, Tuida Township, Kuan Yu Township, Badong Township, and Wangsuo Township.The Dechang mulberries are characterized by early ripening, high quality, and high yield; they start hitting the market in mid-to-late March. They grow naturally, with full-bodied fruits that are large, tight, and have a lustrous purple-black color. Their taste is sweet and slightly sour. The per-acre yield can reach 2-3 tons. Each year, fruit mulberry plants undergo winter and summer…

Frost's descent marks the end of the third decade of autumn, as the old saying goes: "After three decades of autumn's reign, one leaf of fall remains." Frost's descent is the final seasonal marker of autumn, signaling the transition to winter. So, how should we preserve our health during this period? Let's listen to Pan Yanjun, Deputy Director of the Department of Geriatric Medicine at Jing'an District Hospital of Traditional Chinese Medicine, share her health preservation advice. Dietary Advice During the time of frost's descent, dryness still lingers, and people may experience symptoms such as dry mouth, throat, eyes, and skin. In terms of diet, it is recommended to choose vegetables and fruits with higher water content, such as bitter melon, lettuce, cabbage, tomatoes, pomelo, citrus, apples, and lemons. Lifestyle Advice After the frost descends, the weather gradually cools down, and the temperature difference between day and night increases. It is suggested to go to bed early and rise late, shortening outdoor activity time. Before sleeping at night, soaking your feet can help circulate blood and dispel cold. Skin Care Advice In autumn, the skin tends to become dry and taut. To prevent dryness and cracking, you can apply moisturizing…