"Tea must come from the ...... water"

Song Ziyu was slightly stunned when he heard this, and then nodded slightly: "Your sentence is so incisive! I only had a vague concept of the relationship between tea and water before, and you said this sentence?"

What am I talking about?Lu Yu groaned slightly, and then smiled mysteriously. This sentence is not what he said, but a passage summarized by Zhang Dafu, a tea man in the Qing Dynasty in the original world, in the "Records of the Plum Blossom Thatched Cottage".

In fact, not only Mr. Zhang Dafu, but also many tea people in ancient China have also summarized water.

Among them, the most famous is of course the section that the tea saint Lu Yu said: "Its water is used in the mountains and rivers, in the river water, and under the well water." Its mountains and rivers, holding milk springs, stone pools, and diffuse people. ”。

In addition, the famous poet Su Shi also wrote, "Living water must also be cooked by live fire, and you can get affection from fishing stones." The famous sentence of the ages.

In addition, Tu Long, a tea man in the Ming Dynasty, also elaborated on the water for making tea in the book "Tea Notes": "The mountain spring is the top, the river water is second, if you use well water, it is better to take more waves." ”

……

For thousands of years, the Chinese tea people have already studied the culture of tea to the peak, no matter how big or small, it is much higher than the modern tea drinking research in this world. It's a pity that the Chinese tea culture in this world was suddenly cut off, and many classics have long been gone.

After hearing Lu Yu's words, the empty monk nodded lightly and said, "The old monk seems to have said something similar back then, it seems that you kid does have some ability...... But again, it's useless for you to make all these nonsense things! You still have to drink tea to know!"

Lu Yu smiled: "This is natural! It's just that now that I'm idle, I'll just say a few more words." ”

Song Ziyu also glared at the empty monk, turned to Lu Yu and said, "Don't pay attention to him...... Since we're talking about water, I'd like to hear it. ”

Lu Yu pondered for a moment, nodded and said, "It's okay! ”

As he spoke, he suddenly looked at the empty monk and said, "Empty monk, you can also listen to it! If you follow me in the future, you will inevitably need to use this knowledge, lest you not prepare the water to make tea when I want to make tea!"

Hearing this, the empty monk snorted angrily: "Hmph! Who rarely hears this! Say it as if you can definitely win!"

Lu Yu smiled faintly and ignored him, and said slowly: "In terms of brewing tea, I think there are four main words that are more important. First of all, the word 'live' is the word! That is to say, the water for making tea must have an excellent water source! The so-called drinking water thinks of the source, if the source is excellent, then the water must not be bad. ”

"The second is the word 'clear', the water quality is clear, and only the clear water can give full play to the taste of tea. ”

"Again, it is the word 'sweet', the sweet water is already pleasant and refreshing, if it is used to make tea, it is already the same to add points to the tea, so that the charm of the tea is enhanced again!"

"The first three words are easier to understand, and the last one I summarize as 'light'!"

"Light?" Song Ziyu asked with a little puzzlement: "Is there a difference between light and heavy water?"

Lu Yu nodded and said: "Naturally, there is! Fine tea real water is the goal pursued by tea people, and the water is light enough to be called real water!"

The empty monk muttered: "It's true that the water tastes different, but how can there be a difference in severity?!"

Lu Yu glanced at him, did not pay attention to him, but continued: "In fact, what I said is not groundless, it can be explained by modern scientific theories. This theory is based on the theory that modern science divides water quality into two categories: soft water and hard water. ”

Song Ziyu nodded and said: "I have seen this in academic reports, soft water and hard water are generally distinguished by the content of calcium and magnesium ions per liter of water. Water with a content of less than eight milligrams is considered soft water, while water above eight milligrams is considered hard water. ”

Lu Yu nodded and said: "That's right! That's the standard! And according to this standard, most of the distilled water, rainwater, snow water, etc. are soft water." Most of the water in rivers, rivers, lakes, springs, and wells is hard water. ”

"But a large part of this hard water is temporary, which means that after the water is boiled, the calcium bicarbonate and magnesium bicarbonate in the water decompose. Then the hard water becomes soft water. ”

"The softness and hardness of the water can also directly affect the color of the tea soup and the solubility of the active ingredients in the tea, so whether it is drinking or brewing tea, it is better to use soft water!

"The tea soup brewed with light water is bright in color, the aroma is also high, and the taste is better and fresher, which can maximize the true color of tea. However, it should be noted that in addition to meeting the requirements of soft water, water with a pH close to neutral is also required to be called truly 'light water'. ”

Lu Yu talked eloquently, and Song Ziyu nodded again and again. Although she had heard of the classification report on water quality, she did not know the effect on brewing tea.

In fact, most of the world's knowledge of tea is focused on the temperature and purity of water.

After all, the study of tea types and blending methods in this world is the aspect that really attracts attention, and no one really studies water so thoroughly.

Hearing this, the empty monk was also a little moved, and it was the first time he had heard such a scientific exposition on water.

It's just that he still refuses to admit it, and hums: "According to what you say, can't we use the pool water here?"

Lu Yu smiled slightly and said, "It seems that you still don't fully understand my words, I said that although rivers, rivers, lakes, springs and other waters are hard water, most of this natural hard water will become soft water after boiling!"

"If it becomes soft water, then this water also has the prerequisites for brewing good tea. ”

"And because most of the natural water is not deeply filtered and contains a variety of other minerals. ”

"If these minerals can improve the taste, or if they can be integrated with the ingredients in the tea, then this water can not only make tea, but also enhance the taste of tea!"

"The pool water here is clear and harmless, cold and abnormal, and the natural sweetness is refreshing, which is naturally the best choice for brewing tea!"

Hearing this, the empty monk's old face couldn't help but blush, and he stiffened his neck and said, "Hmph! I let you say everything!" But after you said so much, you didn't say what kind of water to use to make tea!"

Lu Yu couldn't help but smile when he heard this, and said: "What I just said is actually analyzing the essence of water, since the essence has been analyzed, then naturally there will be some suggestions for using water, do you want to hear it?"

"I'm ......" the empty monk was speechless for a while.

After Lu Yu's analysis just now, he was already a little absorbed in listening. It's just that because of his relationship with Lu Yu, he can't pull down his face at all now and nod his head to admit it.

Seeing this, Song Ziyu knew that Lu Yu was using his knowledge of the tea ceremony to gradually improve his status in the heart of the empty monk. I couldn't help but understand: "Lu Yu, don't pay attention to him! I want to listen! Tell me what kind of water to use to make tea!"