2 actions, from Quick Alchemy to Quick Tincture.
Quick Alchemy · Quick Tincture
Class Alchemist
Cost 1 batch of infused reagents
Requirements You have the formula for the alchemical item you're creating, and you're either holding or wearing alchemist's tools.
You swiftly mix up a short-lived alchemical item to use at a moment's notice. You create a single alchemical consumable item of your advanced alchemy level or lower that's in your formula book without having to spend the normal monetary cost in alchemical reagents or needing to attempt a Crafting check. This item has the infused trait, but it remains potent only until the start of your next turn.
Core Rulebook, page 72.
Class Investigator; Subclass Alchemical Sciences
Cost 1 versatile vial
Requirements You know the formula for the alchemical item you're creating, you are holding or wearing alchemist's tools, and you have a free hand.
You quickly brew up a short-lived tincture. You create a single alchemical elixir or tool of your level or lower without having to spend the normal monetary cost in alchemical reagents or needing to attempt a Crafting check. This item has the infused trait, but it remains potent only until the end of the current turn.
Advanced Player’s Guide, page 57.