White residue on the Bullet

Started noticing white residue on the sides of the Bullet. Has anyone else experienced this?

It might have been purocaf or caffiza.

But it also looks like something is emitting from the vents. I know my vent shaft is not in the machine very well, though Aillio support said that it doesn’t matter, but I wonder if heat is building up in the out casing.

I’m not seeing that any electronics have issues or white residue yet.

I’ll see if it happens again.

Here’s a close up.