Can overnight tea be used to water flowers? Explained clearly in one article
Can overnight tea be used to water flowers? There is actually no scientific basis to explain the result of this question; at least for now, no relatively authoritative explanation has been seen. Whether overnight tea can be used to water flowers, and whether it is good or bad for flowers, although there is no scientific verification, we can reason it out from common sense.
Let us first look at a piece of material. In an article in Changjiang Daily titled "5 Common Teas Do Not Spoil Overnight; Overnight Tea Should Be Drunk Less but Has Good Uses," the article conducted scientific testing on 5 kinds of tea: green tea (Maojian), black tea (Jinjunmei), dark tea, jasmine tea, and tartary buckwheat tea. According to the test results, after 12 hours, the pH value of the tea infusion changed only slightly. The specific data are as follows:
pH value test
Green tea Black tea Dark tea Jasmine tea Tartary buckwheat tea
Freshly brewed: 6.43 5.20 6.61 5.91 6.77
Left for 12 hours:6.10 5.50 5.13 5.77 6.71
Test results: The pH value of each tea infusion is generally in the range of 5.2-7.0, all weakly acidic, and has not reached the level of spoilage.
So based on this test result, we can conclude that tea infusion is weakly acidic. This is good news for flowers that like weakly acidic soil, but bad news for flowers and plants that prefer somewhat alkaline conditions.
In addition to the above experimental data, we also saw the situations of some flower lovers. Some flower lovers said that they had used overnight tea to water flowers and there were no adverse effects.
In summary, we suggest to flower lovers that overnight tea can be used to water flowers, but it is best to use only the tea infusion to water flowers, and not pour the tea leaves into the flowerpot together. In addition, although overnight tea infusion can be used to water flowers, it should be used according to the actual dryness and wetness of the potting soil. Do not ignore the dryness and wetness of the potting soil, which may ultimately lead to water accumulation and root rot.
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