Alchemist's Flask

The flask upgrades to +320 at level 87, automatically. I have three alchemists, and I noticed the change when two of them hit 87. It may have been some point earlier, but my guild confirms at level 87 they see their flasks giving +320 to the primary stat.

EDIT - it could also be at a certain skill level, like 550, but I can't confirm that. Will update if I hear different or when my last alchemist starts leveling.

If you're gathering your own herbs to create this then Winterspring is the place to go for [object=176588] and Un'Goro Crater for [object=142144].

You'll also find Mountain Silversage in both of those locations.

The number is high and is probably a placeholder like aggixx said.

Most likely, this flask will give a bonus of 320 to a primary stat for 2 hours so alchemists will always have their bonuses. Mixology will probably not work with this flask.

Mixology should give you 320 of whatever stat flask you have on for 2 hours.