History of Tonic Reagent Sack

Overview

A Tonic Reagent Sack is a reward from Fieldwork in Episode: Revenant. It holds a batch of reagents, the ingredients for brewing Tonics at the Tonic Laboratory. Sack size scales with the task: Minor Fieldwork rewards a Small sack, and Major and Key Fieldwork reward a Medium sack (Act II list; Act I's Major Fieldwork I: Europa also gives a Medium sack).

Contents and use

Sacks and Ingredient Bundles give several reagents, with larger ones giving more. ProGameTalk notes they can also drop the rare Reflective Flake. The reagents let you discover new tonic recipes with Eido.

Acquisition

Complete Minor Fieldwork and Major Fieldwork from Eido, or claim them from the Episode reputation track.