Calcium

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…