Tea Bags

Scientifically speaking, infusion tea bags are not compatible with brewing green tea for health. To make infusion tea bags, the manufacturers use dust-grade tea leaves or reduce the relatively intact tea leaves to duct-grade sizes for filling the tea bags. The fragmented tea leaves in dust size have a large total cut surface exposed to the air which would facilitate the oxidation process of the antioxidants in the tea leaves. Therefore, the tea in infusion bags generally has very low levels of the antioxidant EGCG. In addition, in order to prevent the tea bag tissue from disintegrating during tea brewing in hot water, the tissue has been treated by a cross-linking agent(s) containing formaldehyde derivatives. It has been shown that some formaldehyde-like molecules are released from the tea bag during hot water steeping in the tea cups. These formaldehyde-like molecules may not be toxic per se, but their effect on the bioactivity of the green tea is unclear. Therefore, it is inappropriate to put 710EGCG® green tea into infusion tea bags