Many people are probably accustomed to brewing tea from tea bags two or three times, or using tea leaves that have been brewed more than once. However, there are doubts about brewing tea, whether after boiling the water, it can be brewed again, because it seems that it can be brewed and drunk one or two more times.
Normally, all types of tea powder or ground tea leaves have a concentrated content on their own. If they are boiled or exposed to hot water, the hot water will extract the flavor and concentration of the tea. When squeezing water out of tea leaves, the harder you squeeze, the more concentrated the tea will be. When tea powder or leaves have been filtered once, the flavor and concentration of the tea powder or leaves will still be there, but it will not be as concentrated as the first time. The more times it is brewed, the flavor of the tea will gradually become bland. In addition, the color and aroma of the tea will also decrease. Especially tea mixed with milk, such as Taiwanese tea, green tea, Thai tea, the sweetness and aroma of the milk will mask the tea aroma.
Furthermore, the taste, color, and sensation of tea come from two main components: polyphenols and caffeine. Each component has its own astringent properties, but when combined, the astringency is reduced. Reboiling reduces the CO2 level, which reduces the acidity, affects the caffeine and polyphenol content, and changes the color and appearance of the brewed tea. Reboiling only affects the flavor of the tea; it’s not harmful, and the nutrients aren’t lost.
However, it is recommended to use only one brewing time for iced tea because the true deliciousness of iced tea is its rich flavor and aroma.
However, some people may read this article and think that brewing tea for a single time and then leaving it in the teapot longer to get a stronger flavor would be better than brewing it again. I must say that this is not a good idea because another variable that affects the aroma and flavor of the tea is the length of time we leave the tea in the teapot. It is similar to baking a cake. If you bake it for too long, the cake may gradually dry out and burn. If you leave the tea leaves in the teapot for too long, the flavor will gradually become bitter until it is no longer delicious. If you want to enhance the sweet flavor of the tea leaves, it is recommended to increase the amount of tea leaves instead of letting them steep in the teapot longer. Otherwise, the tea may come out so bitter that it is undrinkable. Alternatively, you can use the old tea leaves to brew another round.
Source
https://www.pinterest.com/pin/244461086010500412/
https://kinarino.jp/cat8/25451
https://e-yamamotoen.com/?pid=105742195
Article from : Fuwafuwa
