The ancients talked about boiling water, with one boiling, two boiling and three boiling. The difference between old soup and tender soup is not unreasonable.

The water temperature of boiled tea varies with different tea products. For example, boiling water at 98℃ is suitable for brewing oolong tea (in the past, it was not unreasonable to say that the air furnace was seven steps away from the tea table), and it was not suitable for excessive boiling or insufficient water temperature; The water temperature should be cooled to 80℃ when brewing delicate green tea; A little older green tea, such as afternoon green tea, should be watered at 90℃. The same is oolong tea, some of which are slightly fermented, and the temperature should not be too high, so 96℃ is appropriate. When the ancients talked about boiling water, they said: "It boils like a fish's eye, with a slight sound, and it is a boiling; The edge is like a spring, and it is boiling; Teng waves drum waves, for three boiling. The above water is old and inedible. "

The air furnace and water hammer are the most elegant and exquisite devices for decocting water. Wind furnaces include cast iron furnaces, copper furnaces, bamboo furnaces and clay furnaces. Coal, charcoal, pine branches, bamboo heads, wood chips, etc. are preferred for burning charcoal in the air furnace. It is also interesting to use olive residue instead of burning charcoal in Chaozhou, Guangdong Province. Sand is the first choice for water, and others such as purple sand, clay, cast iron, stainless steel and glass are also commonly used. There is also silver, which is the best in tea. Song Huizong said in "Daguan Tea Theory": "The bottle should be made of gold and silver, and the system of small and large is only cut." The emperor's family says that ordinary people can only listen to it, and they can't copy it. The bottle here is also the tea pot. Because tea was popular in the Song Dynasty, it was changed into a bottle, so that water could be injected to order tea.

The owner of Leng Xiang Zhai usually uses a 500-watt electric stove and an enamel jar with a volume of 800ml to make boiled tea. Although it is not as elegant as the ancient tea ceremony, it is very practical. Although the firepower of the 500-watt electric furnace has eased a little, it can appreciate the quiet feeling of the newborn crabs, the rolling scales and the wind blowing all over the ears. One day, an 800-watt electric stove was used to fry water. Just when I heard the sound of water, the water had already boiled, and it had passed the third boiling. It was old and no longer as leisurely as before.

There is a famous saying in Gu Kuang about frying tea, which says, "When frying, the fire is fine, and when boiling, the pot is long and the spring is long", which is the most artistic conception of frying tea, and it is also the best way to enter tea, poetry and painting. (19961October)