These are excerpts from 42tea.com

PAPER TEA BAGS CONTAIN PESTICIDES, TOXINS, DIOXIN…

Yes this sounds crazy! Imagine you could be drinking pesticides in your favorite drink… But this is true. Paper tea bags often contain Epichlorohydrin, a compound used as a pesticide. Epichlorhydrine becomes active when it is in contact with hot water. This pesticide is known to cause infertility and can harm your immune system. This pesticide also causes cancer in animals. So….why are we drinking tea made in little pesticide bags? Maybe you should check your tea bags before putting it in your mugs. Our advice is to wash it with a warm hot water before steeping.

PLASTIC TEA BAGS CAN LEAK TOXINS

Farmer spraying pesticide on tea leaves

Putting plastic tea bags in hot enough water will begin to break down. When this happens, toxins are released into the tea. Though one cup of bagged tea won’t do any harm, consistently drinking this could cause health issues. The more you drink tea in plastic tea bags, the more chemicals you put in your body – especially if you steep several times the same tea bag. Chemicals in plastic containers and bottles have been found to leach into food and drink. This is why in nursery industry for exemple, baby bottles using plastics included bisphenol-A (BPA), bisphenol-S (BPS), and phthalates have been forbidden in many countries, thereby posing a number of health hazards such as acting as potent endocrine disruptors.

SOME TEA BAGS ARE CHLORINE-BLEACHED

Some of the bags used to contain tea are made with paper. But what you may not know is that the paper has been chlorine-bleached. Yes, unless you buy your tea from an environmentally brand, most of the tea you consume is wrapped in white bags. White stands for “clean“. This means that these tea bags are the result of intensive chemical processes. Would you like to continue drinking tea in a chlorine-bleached bag? Just for your information, drinking tea in a chlorine-bleached bag once won’t really do anything. But do it consistently could represent a health risk.