I really question how weak or how small of a cup somebody must be using to be able to steep it 10 to 20 seconds so I did a minute on my first infusion. The tea was lighter than I normally brew my puerh but it still had a decent amount of depth. I brewed a second mug with the same tea bag for a long brew and it was about the same as the first brew or maybe a little lighter. Personally I think it would be best to just brew it for a single long infusion to get a decent strength cup of puerh. Regardless I can say that this is indeed a premium puerh teabag at a level that likely rivals a lot of cheap bricks and cakes with these one is not forced to choose between bad teabag puerh or no puerh when traveling.