I just bought some ginger tea and have discovered that if you leave the bag steeping too long, it changes flavor CONSIDERABLY after about 2 minutes. The first blush is subtle and delicate and very pleasant, but if you forget to remove the bag all of a sudden it turns nasty and brutish and acerbic. Not just stronger, but an entirely different flavor palette.
Interesting. Haven't experienced that before.
When I was in Amsterdam my host had some Dutch ginger tea that was superb. I drank it all up. Haven't been able to find anything similar in the states, and I've tried several.