OR, the user could make it hot enough to evaporate...
Only 1?
Big Ball Rasengan
Mini-Rasenshuriken
Planetary Rasengan
Rasengan
Sage Art: Big Ball Rasengan
Sage Art: Many Ultra-Big Ball Spiralling Serial Spheres
Sage Art: Ultra-Big Ball Rasengan
Tailed Beast Rasengan
Twin Rasengan
Wind Release: Rasengan
Wind Release: Rasenshuriken
He's shown 3...That makes him a master? Mei has shown 2...
No, pure speculation on your part, that much is obvious.
Sure, he does, and he's better than the lava users we've seen, but he is not stronger than lava release itself.