Take a pellegrino. No, not that pellegrino, this pellegrino.
yes. Take eight of them.
Now take that pellegrino you were thinking of. Yeah, that one.
'k. Now take that pellegrino? And mix it in with all the other pellegrinos. You now have approximately the concentration of "flavor" to "fizz" that has made La Croix a household name.
Awright. Now let's make it "hard." Take one of these.
Put it in that empty pellegrino can, and fill it up with as much pellegrino as will fit.
Congratulations. You just made "hard seltzer."