The question seems a bit silly like how much liquid is there in a glass. As much as you put into it I guess. You can tell roughly by how it makes you feel. The

The question seems a bit silly like how much liquid is there in a glass. As much as you put into it I guess. You can tell roughly by how it makes you feel. The one I just had at Ronis Primrose Hill had a pretty good whack. Probably about 200mg comparing it to the Starbucks list. Or maybe 250. (https://www.caffeineinformer.com/the-complete-guide-to-starbucks-caffeine https://www.caffeineinformer.com/the-complete-guide-to-starb...)