Calcium

According to weather forecasts, from February 1st to 6th, Hubei Province will experience the most powerful cold wave of the winter, with low temperatures, rain, snow, and ice. The average temperature across the province is expected to drop by 6°C to 10°C. This severe freezing weather will pose a significant threat to the normal growth of tea plants, particularly young ones. Precautionary measures should be taken to minimize the impact of extreme freezing conditions on tea fields and ensure the production of spring tea next year. Influence of Low-Temperature Freezing Weather on Tea Production Severe freezing weather poses a significant threat to the normal growth of tea plants, especially young ones, potentially leading to reduced yields, decreased quality, and even plant death. Measures to Prevent Frost Damage in Tea Plants 1. Covering for Frost Protection For mature tea plants in high-altitude areas, non-woven fabrics, ground films, or shade nets can be used to directly cover the canopy, with better results achieved by erecting a shelter 10cm to 20cm above the canopy. Covering with rice straw or crop stalks provides even better protection against extreme cold. Covering materials should be removed when temperatures rise. 2. Spraying Anti-Freeze Agents For mature tea…

White tea actually cools the body. It is a minimally processed type of tea. White tea's nature is inherently cool, and during its production, it is merely sun-dried or gently dried over low heat without undergoing any other processes like steaming or rolling. Therefore, its inherent properties remain intact, making it particularly effective for reducing fever and cooling the body. If you experience symptoms such as swollen gums or canker sores due to heatiness, drinking some white tea may help alleviate these issues. Does White Tea Cool the Body or Cause Heatiness? In the "Compendium of Materia Medica," Li Shizhen recorded that "white tea is cool in nature, similar to rhino horn." Traditional Chinese medicine has proven that white tea has a slightly warm, yet cool nature, and is effective for reducing fever, cooling the body, and eliminating dampness and toxins. For a long time, in white tea-producing areas like Fuding, a concoction of white tea and rock sugar has been used to cool the body, relieve dryness, treat toothaches, constipation, and discomfort from being out of one's element. Aged white tea is even used to treat illnesses like measles and fevers in children. Moreover, drinking white tea can alleviate…

Tea is the best beverage for middle-aged and elderly people. Scientific analysis has shown that tea contains proteins, fats, over 10 types of vitamins, as well as nearly 300 components such as polyphenols, caffeine, and lipopolysaccharides, which can regulate physiological functions and play a variety of health-preserving and pharmacological roles. What are the greatest benefits of drinking tea? 1. Improves Muscle Endurance. There is an antioxidant in tea called "catechins," which can increase the body's ability to burn fat, improve muscle endurance, help fight fatigue, and increase the duration of physical exercise. Regular consumption of green tea shows the most significant effects. 2. Fights Ultraviolet Radiation. Tea polyphenols are water-soluble substances. Washing your face with tea water can remove facial grease, tighten pores, and have disinfecting, sterilizing, and anti-aging effects on the skin. It also helps reduce damage from ultraviolet rays in sunlight, acting as a natural "sunscreen." 3. Maintains Body Shape. The caffeine in tea can promote the secretion of gastric juice, aid digestion, and enhance the body’s ability to break down fat. Regular tea consumption can reduce waist circumference, lower body mass index (BMI), and thus help prevent diabetes and cardiovascular diseases. 4. Protects Against Radiation. Tea polyphenols…

Tieguanyin tea can eliminate fatigue, promote metabolism, and maintain normal functions of the heart and blood vessels. Drinking Tieguanyin tea can be beneficial in preventing tooth decay. It also has the effects of moisturizing the skin, invigorating the spirit, enhancing cognitive function and memory. The tea contains trace elements that are beneficial to the human body; regular consumption of Tieguanyin tea can inhibit cell aging, prolonging life. Tieguanyin tea can prevent arteriosclerosis, hypertension, and cerebral thrombosis. Additionally, it can stimulate the central nervous system, enhance physical performance, and has good weight loss and beautifying effects. The Benefits and Effects of Tieguanyin Tea One: Benefits of Tieguanyin 1. Anti-Aging Japanese researchers have shown that the polyphenols in Tieguanyin can prevent excessive oxidation. The purine alkaloids indirectly help clear free radicals, thus achieving the goal of delaying aging. 2. Weight Loss and Beautification Studies have shown that Tieguanyin contains a large amount of tea polyphenols, which not only enhances the action of fat-decomposing enzymes but also promotes the metabolic activity of neutral lipase in tissues. Thus, drinking Tieguanyin can improve the physique of obese individuals, effectively reducing subcutaneous fat and waist circumference, thereby decreasing their body weight. The People's Hospital of Quanzhou…

In recent years, the area of tea gardens has grown annually in response to the increasing demand in the tea market. However, the expansion of tea garden areas has brought about a series of issues including soil erosion, acidification, and reduced fertility, which are detrimental to tea yield and quality. This article, based on the current distribution of tea gardens in our country, summarizes the more common problems in the tea garden soil environment. It also analyzes the remediation effects and mechanisms of applying biochar, microbial fertilizers, and compound conditioners, aiming to provide a theoretical foundation for future soil improvement work in tea gardens and the promotion of soil conditioners. This article, based on the current distribution of tea gardens in our country, summarizes the more common problems in the tea garden soil environment. It also analyzes the remediation effects and mechanisms of applying biochar, microbial fertilizers, and compound conditioners, aiming to provide a theoretical foundation for future soil improvement work in tea gardens and the promotion of soil conditioners. I. The Area and Distribution Characteristics of Tea Gardens in Our Country As of 2022, the total area of tea gardens in our country has reached 3.3303 million hectares, ranking…

"I would rather abstain from alcohol all my life than go a single meal without tea." China’s tea culture has a long and rich history, and drinking tea has always been an essential part of maintaining health. However, there is a right way to drink tea. If you don't do it correctly, you may end up harming your stomach. The Tea Editor will now list some harmful tea-drinking habits that can severely damage your stomach. Let's see if you fall into any of these categories? 1 Habit of Drinking Tea on an Empty Stomach Stomach-Damage Rating: ★★★★★ Drinking tea on an empty stomach is one of the most damaging tea-drinking habits! On an empty stomach, some active compounds in tea can bind with proteins in the stomach, stimulating it and easily causing harm. In addition to stimulating the stomach and intestines, drinking tea on an empty stomach dilutes digestive juices, affecting digestion. Symptoms may include palpitations, dizziness, weakness in the limbs, mental confusion, and nausea. For those who do not regularly drink tea, especially when drinking strong tea on an empty stomach in the morning, these symptoms are more likely to occur. This phenomenon is medically referred to as "tea…

The Winter Solstice is the longest night of the year in our country and also the day when yin energy is at its peak. After the Winter Solstice, sunlight gradually increases, yin energy slowly decreases, and the daytime becomes progressively longer. Therefore, the Winter Solstice is a very special day. It is an important solar term in the Chinese lunar calendar and a traditional Chinese festival, commonly known as "Winter Festival," "Festival of the Longest Night," and "Sub New Year," among others. In ancient China, great importance was placed on the Winter Solstice, which was considered a significant holiday, with the most emphasis on winter tonics. Thus, many people would eat and drink well on this day. People believe that after the Winter Solstice, daylight hours become longer each day, yang energy begins to rise, marking the start of a new seasonal cycle and a lucky day that should be celebrated. Winter Solstice Health Preservation Since "Qi begins at the Winter Solstice," from winter onwards, vital activities transition from flourishing to waning and from dynamic to static. Scientific health preservation can help ensure vigorous vitality while preventing premature aging, contributing to longevity. During the Winter Solstice period, your diet should…

Litchi, also known as lychee, is loved for its sweet and fragrant flesh. The entire fruit is a treasure trove of medicinal value. For instance, litchi seeds can help regulate qi flow, dispel cold and stagnation, and relieve pain. Litchi shells are known to alleviate heatiness in the body to some extent. A lady's laughter through a cloud of red dust; none would know it was due to litchis coming—Du Mu, "Passing by Huaqing Palace (Three Quatrains, First)" Eat three hundred litchis daily, I would not mind being a southerner forever—Su Shi, "Eating Litchis" In May in the south, litchis are as red as cinnabar, each one round like a dragon's pearl—Liu Zuman, "Litchi" Many tea enthusiasts also love litchis but may wonder which teas pair well with them. In fact, litchis have a strong compatibility and can be paired with many foods, producing unique effects. With tea, you can try pairing litchis with black, white, or green tea—all of which work well. Here are the benefits of combining litchis with tea: Litchi Black Tea—Beauty and Detoxification Litchis contain vitamins A, B1, and C, as well as pectin, free amino acids, proteins, and elements such as iron, phosphorus, and calcium.…

Black tea and milk can indeed be enjoyed together—think of the classic combination in milk tea. Some people say that milk should not be consumed with tea, as the calcium in milk can bind with oxalic acid in the tea, making it unabsorbable. This theory doesn’t hold up. Compared to vegetables, tea is not a major source of oxalic acid. A teabag contains 4-6 mg of oxalic acid per gram, and each molecule of oxalic acid can bind with two calcium ions. The molecular weight of oxalic acid and the atomic weight of two calcium ions are roughly in a 1:1 ratio. Brewing a cup of tea typically requires 1-2 grams of tea (for most people), which would contain no more than 12 mg of oxalic acid, resulting in a loss of only 12 mg of calcium. However, half a cup of milk (100 grams) contains 100-120 mg of calcium, so even if 12 mg were lost, it would only be one-tenth of the total, not something to worry about, and certainly not leading to osteoporosis. Can I Add Milk Directly to Black Tea? Milk can be added directly to black tea. Milk is rich in protein, calcium, and other…

Pu'er tea is gentle and doesn’t harm the stomach. In today’s fast-paced, high-pressure lifestyle, gastric problems are common, and many people have imbalanced blood and qi or irregular eating habits. Typically, lightly fermented teas can be a concern for tea enthusiasts. Pu'er tea is a scientifically validated health beverage. Many modern individuals are working tirelessly to make money, and once the cancer-preventing and health benefits of Pu'er tea were confirmed by medical professionals, the concept of “spending a little for longevity” strengthened the faith of tea lovers and attracted many new enthusiasts. Additionally, Pu'er tea’s ability to reduce fat, aid digestion, and promote weight loss has captured the hearts of countless beauty-conscious individuals looking to maintain their figure and middle-aged individuals dealing with weight gain. Pu'er tea is easy to brew and can withstand multiple infusions. Properly aged Pu'er tea is not bitter or astringent, even after prolonged steeping. Unlike high-mountain teas that require precise timing, brewing Pu'er tea is simple and enjoyable, and it’s as convenient as using tea bags. The components in Pu'er tea inhibit the growth of harmful microorganisms in the digestive system while promoting the growth of beneficial bacteria (such as lactobacillus), effectively regulating gut function.…

Many tea enthusiasts have encountered an issue where, when brewing a particular serving of tea, the first few infusions already exhibit a heavy water taste, giving the impression of separate tea and water. Why does this happen during tea brewing? Here are some possible reasons: Hard Water Quality The hardness of water affects the solubility of compounds within the tea leaves. Soft water has a higher solubility, resulting in a stronger tea flavor. Hard water, which contains higher levels of calcium, magnesium ions, and minerals, has a lower solubility, leading to a milder tea taste. Therefore, we should choose soft water whenever possible and avoid using high-hardness water like well water for tea brewing. Insufficient Water Temperature The solubility of tea is directly proportional to the water temperature. If the water temperature for brewing is too low, the solubility of the compounds in the tea leaves will be reduced, resulting in a weaker tea taste and a more pronounced water taste. There's no need to overly worry about high temperatures destroying vitamins in the tea, as the vitamins in tea are relatively stable, and their loss at high temperatures is actually quite limited. Weather Conditions During Tea Processing Spring tea…

"Tea grown in the crevices of rocks not only contains rich organic matter but also essential trace elements such as calcium, magnesium, and iron for the human body..." Mr. Yang in the live stream enthusiastically introduces this to netizens. Guodazhai Township, a place where the Yi and Bai ethnic groups reside, is located in the southwestern part of Fengqing County, over 80 kilometers away from the county center. It is a town with prominent karst topography, dotted with peculiar peaks and strange rock formations. The highest peak is Mount Wanming at an elevation of 2,905 meters. Here, winters are mild and summers are cool, with an average temperature of 16.5°C and annual precipitation of 1,506 millimeters. Fifteen rivers, including the Yalang River, Qiongying Stream, Yanfeng Mountain River, and Shuimuo River, as well as five reservoirs like Guodazhai Reservoir, Jinchangba Reservoir, and Ganlongtang Reservoir, together form the veins of this land. The Yalang River runs through the township, dividing its 11 villages into eastern and western regions. From the river valley to the mountainous areas, the land is suitable for tea cultivation. There are nearly 30,000 mu (approximately 2,000 hectares) of tea gardens in the township, producing almost 2,000 tons annually.…

When brewing tea, you may occasionally encounter a situation where the water taste is prominent. What causes this? It is mainly due to the impact of water on the tea brewing process. So what effects do water quality and water temperature have on tea brewing? Why does tea have a strong water taste when brewed? Here are some reasons: 1. Hard Water Quality The hardness of the water affects the solubility of compounds in the tea leaves. Soft water has a higher solubility, resulting in a stronger tea flavor. Hard water contains more calcium, magnesium ions, and minerals, leading to lower solubility and thus a weaker tea flavor. Therefore, we should try to choose soft water and avoid using high-hardness water like well water for tea brewing. 2. Low Water Temperature The solubility of tea is proportional to the water temperature. If the water temperature used for brewing is too low, the amount of compounds dissolved from the tea leaves will be small, leading to an insufficient tea flavor and a more pronounced water taste. There's no need to overly worry about high temperatures destroying vitamins in tea, as the stability of vitamins in tea is relatively high, and the…

Drinking tea is a common practice for adults. However, in daily life, we rarely see children drinking tea. Many parents allow their children to drink regular soft drinks and carbonated beverages but seldom permit them to drink tea. Zhu Haiyan, Director of the Horticultural Culture Research and Dissemination Center at the College of Horticulture and Landscape Architecture at Hunan Agricultural University, explains that there are two main reasons why we seldom see children drinking tea in everyday life. Firstly, children do not like the bitter taste of tea. More importantly, people believe that tea has a certain stimulating effect which may be detrimental to children's growth and development, potentially harming their spleen and stomach. In fact, these views are one-sided. "Scientifically speaking, drinking safe and hygienic tea, without consuming it too strong, can bring many benefits to children," Zhu Haiyan says. Firstly, moderate tea consumption helps to reduce fat and promote weight loss. According to relevant surveys, more than one-fifth of school-aged children in major cities in China suffer from varying degrees of nutritional excess, leading to numerous cases of obese children and those with high blood pressure and high cholesterol levels, severely affecting their physical and mental development. The…

Good tea thrives with proper nutrition; fertilizers are the material foundation for increasing yield and improving quality in tea production. Fertilization plays a crucial role in the growth of tea plants and the yield and quality of tea leaves. While some nutrients are supplied by the soil itself, its nutrient content is limited and subject to environmental factors, leading to significant losses through leaching and volatilization, which greatly reduces nutrient availability. This is insufficient to meet the needs of tea plant growth, let alone high yields and quality standards. Additionally, as a leaf-harvesting crop, the annual harvest of large quantities of buds and leaves removes a certain amount of nutrients. Therefore, most nutrients must be replenished through fertilization. When soil nutrient imbalances occur or there is an extreme deficiency of one or more nutrients, it is necessary to use appropriate fertilizers to correct the nutritional deficiencies to ensure high-yield and high-quality tea production. Therefore, proper management of tea gardens during different seasons is crucial, and fertilization is a key technology in garden management that should receive significant attention. Especially during autumn, a critical period for tea garden management, the focus is on rapidly restoring tree vigor to lay the groundwork…

To strengthen the management of tea gardens during summer and autumn and ensure production of teas during these seasons as well as the following spring, the Department of Plant Industry Management of the Ministry of Agriculture and Rural Affairs, together with the National Agricultural Technology Extension Service Center, the Expert Advisory Group on Tea of the Ministry of Agriculture and Rural Affairs, and the National Tea Industry Technology System, have proposed technical guidelines for tea production in summer and autumn 2024. Strengthen Fertilization Management of Tea Gardens 1. Top-Dressing Fertilization in Tea Gardens (a) Root Fertilization: Top-dressing fertilization for summer tea should be carried out after the spring tea harvest, and for autumn tea after the summer tea harvest. For tea gardens in production, about 15-20 kg of urea or 20-30 kg of specialized compound fertilizer for tea (with a formula of 18:8:12 N:P2O5:K2O) is generally applied per mu, with higher-yielding gardens receiving slightly more. Image Source: Anji White Tea Website Fertilizer should be applied in trenches dug vertically below the edge of the tree canopy, with a depth of about 10-15 cm. Broadcasting of fertilizer is prohibited. In young tea gardens (1-2 years old), fertilizer should be applied 5-10…