Add water and tea bags to Instant Pot. In my 6 qt, it came to the half way marker.
Make sure lid is on sealing setting and pressure cook tea for 4 minutes.
Allow tea to natural release for 15 - 20 minutes and then you can do the quick release to depressurize the rest of the way. Turn off heat, don't use the Keep Warm setting.
Allow tea to cool down before pouring into pitcher.
If tea is too strong mix with a little cold filtered water before serving and/or a lot of ice. Tea is very dark, but doesn't taste as strong as it looks.