how do they make decaffinated tea?

Answer 1

Look at these sites -- they explain the process ... I don't know if the third site will be helpful, but you could snoop around there if you still have questions after the first two.

http://www.cafedirect.co.uk/products/decaf_process_instant.php

http://www.swisswater.com/decaf/decaf_coffee_process

http://www.thartech.com/index.php?page=sys&subpage=labsfe

Answer 2

you buy decaffinated tea bags.