I would say he's had a little practice
Now this guy sounds like he knows how to party! +rep for you my brotherthe throw is looped so the can gets alot of airtime and SCSA just needs to swipe it to grab it. It does go wrong quite a few times on youtube video's you see him drop one, miss one, get hit by one etc...
Mania 21 he drops about 5 cans. Also opening a can with 1 hand is easy. Holding from the top your index finger and thumb hold 1 half your pinky and 3rd finger hold the other and you lift the tab with your middle finger.