Tea is a popular drink, but it should be consumed with caution.
In some cases, this drink, instead of being beneficial, can actually cause harm.
In particular, this applies to drinking cold tea.
After all, a stale drink can pose a health hazard.
Tea contains various substances that have a positive effect on the body.
This drink contains tannin, theophylline and other substances.
They can affect the nervous system, help fight fatigue and improve performance.
In ancient China, tea leaves were even used for medicinal purposes.
This plant contains polyphenols, which have a positive effect on blood vessels and cell membranes.
Tea also helps remove some harmful substances from the body.
It is important to take into account that fresh tea has all these beneficial properties.
But a cold and stale drink can be harmful.
Due to exposure to oxygen, the surface of the tea infusion may oxidize.
As a result, a thin oxide film appears. It contains bases that can negatively affect the body.
Various microorganisms can quickly multiply in the film, especially if the tea is sweet.
In addition, over time, this drink can lose its beneficial properties.
It is also worth understanding that one cup of cold tea is unlikely to be harmful. But it is definitely not worth doing this on a regular basis.
Previously, we wrote about the health benefits of tomatoes.