The sudden greater availability of nylon tea bags, bucking the trend for eco friendly produce and pandering to lazy tea drinkers with money to burn is the triumph of marketing over common sense it would seem.
Originally a Japanese idea which was offered with herbal teas (which normally have that all natural image) has been extended to ordinary tea as a way of getting the leaf tea taste in a convenient bag large enough to accommodate the full leaf rather than the ‘dust’ that usually is put in paper based tea bags. The manufacturers reason that only nylon is tough enough to contain the sharp paper tearing (eh?) full leaf pieces but all this convenience comes at a great cost which sees a four times increase in cost per tea bag.
They further claim that the nylon bags remove that ‘paper taste’ experienced with tea bags though do not comment on the potential health consequences of brewing your tea with nylon rather than using leaf tea on its own and a tea strainer.