types of yixing clay

There is an ideal teapot or gaiwan for each type of tea there is. Should you find a Yixing you trust as real, the task continues to grow exponentially in complexity; not all Yixing pots are created equal, and there is in fact a wide range of sub-types of Yixing clay commonly used to make Yixing teapots – some of which should only be used for specific teas or under specific conditions. There’re three main types of Yixing Zisha Clay: Zi Ni, Zhu Ni and Lv Ni I. Zi Ni – The most common Type of Yixing Clay Appear purple, dark purple, purple brown or purple red after firing. Lleva tu comunidad favorita contigo y no te pierdas de nada. The appearance of yixing products, such as its colour or texture, can be enriched and altered through the addition of various metal oxides into the yixing clay, through the manipulation of firing temperatures, and also from regulating the kiln atmosphere (oxidative versus reductive). Zi Ni is the most common ZiSha clay type. Yixing clays consist of fine iron-containing silt, with mica, kaolinite and varying quantities of quartz and iron ores as its main mineral constituents. Whether it's for gong fu or more casual tea drinking. It has been known as late as the Ming Dynasty that tea was most suitably brewed in a Yixing teapot. Zini is the Chinese name for the purple Yixing clay. At the Tea Institute (of which I am only an advisor) we have set out to analyze the chemical composition of the clay, the clay’s effect on the sensory attributes on various classes of teas, and the chemistry that causes these sensory changes. Each of the 19 areas may have one or more of these types of clay, and almost every teapot made since 1950 is a mixture of multiple areas. The Secret to the Yixing Teapot is in the Clay. These include some of the main categories of Zisha, like Zini (紫泥/purple clay), Hongni (红泥/red clay), and Zhuni (朱泥/vermillion clay). Other areas of Yixing, non-traditional mines, are now being used for modern Yixing clay… I can’t imagine they will be as good, or mining there would have started ~100+ years ago. The clay powder then undergoes air screening to isolate clay particles of the finest grit size. This step is important to enhance the plasticity of the clay block. 1. In contrast, brewing many different types of tea in a Yixing pot is likely to create a coating of mishmashed flavors that muddy the taste of future brewings. There are so many types of clay in Yixing Clay category. The known ones are the Yixing clay teapots made from the clay from Yixing in the eastern Chinese province of Jiangsu. This is why you should rinse them with clear water. The earth at each of the 19 traditional Yixing mining areas is stratified in a consistent pattern: Only Layers 3, 5, & 6 are mined for Yixing clay. Types of Yixing Clay. No matter which type of Yixing Clay teapot, they all have one same characteristic. Processing of raw zisha yixing clay involves removing the clay from the underlying strata, drying it under the sun in open stalls, and then pulverizing the dried clay pieces into fine particles. Jiangsu province, China, is renowned for its “Zhuni”, which means red clay, from Yixing county. An exception to this is Lüni (绿泥/green clay), which refers to the color of the raw material. Green Yixing Clay – Rare. There are three primary kinds of zisha clay used to make Yixing teapots. Tea Suggestion: Ball Style Oolong, Pu-Erh. The names for each type of Zisha have unique origins. Much has been said about the legendary "Dahongpao" clay from Yixing. HongNi is red clay, and is often lower quality than ZiSha – but ZhuNi is the highest quality of HongNi (the highest fired and even more porous due to the refining process) and is the rarest type of Yixing. DuanNi is mixed composition clay, and is usually (mostly) yellow. Some say it's rare, others that it's extinct, others that it's still available, and others that dahongpao teapots are fake. Wheel throwing will leave a slight circular pattern on either the inside or outside of the pot. Yixing clay (simplified Chinese: 宜兴; traditional Chinese: 宜興; pinyin: Yíxīng; Wade-Giles: I-Hsing) is a type of clay from the region near the city of Yixing in Jiangsu province, China. The composition and color of the clay varies by region, and multiple regions are blended to yield the sought after ZiSha, HongNi, and DuanNi clay. HongNi is red clay, and is often lower quality than ZiSha – but ZhuNi is the highest quality of HongNi (the highest fired and even more porous due to the refining process) and is the rarest type of … These teapots are not as efficient as authentic Zisha teapots. Different types of clay when mixed is called Pingni. As the clay absorbs flavours, we strongly recommend reserving a tea pot for a specific type of tea. The type, design and the colour to make out of your Yixing pot depends on the type of clay used. Pronounced E-Shing or Yi-shing, Yixing clay is often referred to as purple clay, or Zisha, from the Yixing region of China. I’m not sure how much clay is still existent, but I think there’s a good amount if you’re willing to pay top dollar. Yet finding, sourcing, and understanding Yixing can quickly become an expensive and sisyphean undertaking. The properties made it ideal for brewing tea. The 800 – 1280 degree Celsius range in firing is responsible for inducing changes in the structure and properties in the clay, and its final color. Kaolinite  (helps teapot to be more flexible and reduless breakage), Aluminum oxide: (helps it to withstand heat), Ferric oxide (changes the color and makes the teapot matte). Yixing duanni teapot. The majority of the mines were closed in 1992, and the rest were closed in 1996. The Main Categories of Yixing Zisha. They are known as Purple Sand ware, and are typically unglazed. From the 17th century on, the ware was commonly exported to Europe. Spout Height: 5.5 cm (2 in) Spout Opening Diameter: 0.7 cm (0.3 in) Mouth Opening Diameter: 5.9 cm (2.3 in) Reviews There are no reviews yet. Your email address will not be published. As purple clay is purple brown, ZiSha clay lovers used to call it 'black purple clay'. For example, yixing clay is perfect for rounding dark oolong tea. The most famous wares made for yixing clay are Yixing clay teapots (宜興紫砂壺; yíxīng zǐshā hú - Yixing Purple Sand Pot). Yixing clay is fragile so please handle with care. One doesn’t rely on the appearance to show his nobility, and only that which is true in nature is most valuable and pleasing. Yixing teaware is considered by many the only possible option for gong fu style tea; beating porcelain, glass, and other clay teapots. The seam of yixing zisha can be as thick as a several decimeters, up to a meter. Yixing Zisha Clay put away for Aging. It all began with a legend. For this reason, each teapot is dedicated to a specific tea type. Most of the names come from the color of the clay after firing. There are many types of Yixing clay but they can be categorized into two grades of quality: “Earth-clay” made from mud “Stone-clay” made from rock “Earth-clay” is typically used to make mid-grade quality teapots which are widely available in many designs at affordable prices. Yixing clay pottery type of clay customary in Jiangsu province, China. The screened clay is then mixed with water in a cement mixer to a thick paste, piled into heaps, and vacuum processed to remove air bubbles, in addition to some moisture from the clay mixture. Eventually, this research will yield a better scientific understanding of the magic and allure of Yixing clay. Required fields are marked *, The 19 Areas of Yixing & The 3 Types of Yixing Clay. Therefore, brewing one type of tea will give a distinctive character to your zisha ware. There are several distinct types of Yixing clay used to make stoneware: The clay is left to age for at least 3-6 months, depending on the type of the ore, the aging period could be longer. Despite the name, this clay turns dark brown once it is fired. Where iron adds the red color and glauconite adds the subtle green color. The Institute will use these rare samples for our research, and to help determine the authenticity of our collection. Zi Ni ZiSha clay has a high content of … The composition and color of the clay varies by region, and multiple regions are blended to yield the sought after ZiSha, HongNi, and DuanNi clay. But most teapots are made from just three broad families of base clays. Upload media – Gao Zhuang . When excavated, it is usually located within stratified layers of other clays. A lot of the clay is aged for 40 – 70 years, so we’re still within that standard aging time. Some of the most popular types of the naturally occurring resource include Zini, Duanni, and Hongni. Zini. These teapots after years carefully used and maintained will become glossier and more elegant looking. Articles with unsourced statements since February 2007, Articles with invalid date parameter in template, Diccionario de cerámica inglés - español: C, Diccionario de cerámica inglés - español: Y, Licencia Creative Commons Atribución/Compartir-Igual 3.0, https://ceramica.fandom.com/wiki/Yixing_clay?oldid=92710, CeraWiki:Artículos que necesitan referencias. Many tea connoisseurs will steep only one type of tea in a particular Yixing teapot, so that future brewings of the same type of tea will be optimally enhanced. For tea brewing or outside of the names come from the 17th century on, the ware was exported. Or zisha, from the 17th century on, the resulting clay is preferred for teapots... 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