I have a can of edme classic pilsner and want to make a czech style pils around 3.5% ABV. I don't know where the advertised vial of extra hop extract might be (unless it's inside the can somewhere), so I don't have any idea of the base hop strength. I have tettnang and spalt pellets. I want to do a 5 US gallon batch with a medium hop strength. Any ideas?