you do NOT want to even try using these for home brew. They are super thin and cheap, and the caps that come with them barely go on again, let alone trying to put a crown cap on. These are basically only imported to be sold over the counter at the bars after last call.
Nothing says "sick day" like ordering two san miguels at 1:30am on a tuesday
on tap: Nothing! new beer fridge in planning
gassing/maturing: bad beers growing up to maybe be good beers
Fermenting: nothing!