According to what I saw on the internet, here are the caffeine amounts for certain teas …
English Breakfast: 50mg
Black Tea: 40mg
Green Tea: 20 Mg
I suspect that these numbers could be inaccurate, because I sometimes have seen numbers that were higher.
Regardless, I think that it is still valid to use these numbers as a guide. It is easy to see how I could use this to slowly decrease my caffeine intake …
Day 1: I ingested 120 mg caffeine.
Day 2: I ingested 100 mg caffeine.
Day 3: I ingested 90 mg caffeine.
My plan is to continue going down in increments of 10 where possible. When I get down to 40 I might stay there a few days before going down to 20.