Tea And Cold Water

Different from the traditional way to prepare tea with hot water, using cold water for making tea is a innovative method. With cold water and green tea, oolong tea or black tea, you can put them either in the refrigerator as the cold drink or drink them at the room temperature. Actually, as long as the time is long enough, you can still get the full flavor and nutrition from the tea. Is is found by the scientists that tea in cold water can release more catechin and less caffeine content. As a result, cold tea is more suitable for people working in the office due to its easy way of preparation.

Tea polyphenol in tea polyphenol-rich substances has been proven to lower the blood sugar level and lower the risk of several diseases like blood lipids, hypertension, cerebral thrombosis, arteriosclerosis and cancer. Tea pigments is a type of oxidized polymer from tea polyphenols, and it also has certain preventive effects on diabetes. In addition, the tea pigments can also be helpful to lower the cholesterol level and relieve the symptoms of several diabetes complications like cardiac and cerebral vascular disease and atherosclerosis.

When the hot water is used for brewing tea, the hypoglycemic effect of polysaccharides material in tea will be seriously undermined. Also, the theophylline and caffeine in the tea can be very easily released in hot water. In case of cold tea, the effective components such as tea polysaccharides can be fully released and they can bring great benefits for patients with type 2 diabetes.

Caffeine in tea has some refreshing effect which is the reason of people having insomnia at night. When the green tea is soaked in cold water for 4-8 hours, the beneficial catechins can be fully released while only half of the caffeine is released. So, the cold water method can reduce the amount of caffeine and does not interfere with your sleep.

Although cold water is a better way for drinking tea, not all kinds of tea is good for this method. Generally speaking, the tea with relatively long fermentation time is not suitable for this method. These tea will release a higher amount of phosphorus content. So it is strongly advised to apply the cold water method in some low fermented tea. Generally, green tea has the lowest fermentation level and it is the best candidate for this method.

Image provided By McKay Savage from London, UK [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

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