D&D5e Alchemy

Alchemist's Supplies (Proficiency)

Characters proficient in this Tool Proficiency are trained alchemists, capable of using the ingredients, tools, and techniques in the creation of alchemical goods. A set of alchemist's supplies (per the Player's Handbook) fits into a satchel of moderate size, and consists of a variety of alchemical tools: flasks, alembics, crucibles, and an octavo journal containing the alchemist's recipes.

• Alchemist's Formulary: This octavo-sized journal records the alchemical recipes known to the alchemist. Upon taking the alchemist's supplies proficiency, a character knows all Common recipes, plus four Uncommon recipes and one Rare recipe. The alchemist character may find or purchase other recipes as play progresses.

Alchemy Lab

500gp (3 slots) • +100 gp per additional slot
An alchemy lab is a much larger workspace than a simple set of supplies. Where alchemist's supplies can only be used to work on a single project at a time, the purpose of a lab is to allow multiple processes to work at the same time. Setting up an alchemical lab requires space to do so. If the character's Lifestyle does not provide multiple rooms for their living situation, the character must either find a space to do this or upgrade their Lifestyle so that it does. Generally speaking, a Comfortable Lifestyle is sufficient to provide the room needed for a lab setup.

Each slot allows an alchemist to tend to a single project, performing the standard 5gp worth of work towards the completion of that alchemical item for each slot. An alchemist can tend to a number of such slots equal to 1 + their proficiency bonus. Alchemists with large labs frequently employ apprentices to help tend to the extra projects "on the fire" (as it were).

Multiple slots can also be dedicated to a single project, devoting more resources to the project in question. For each slot dedicated to a given item, 5gp of work is done per day towards that item being completed. Thus, if an alchemist devotes three slots toward finishing a potion of climbing, they accomplish 15gp per day of crafting toward that end.

Alchemical Recipes

Like magical items, alchemical items are rated in terms of their rarity. Common recipes are known by virtually all alchemists as a standard part of the lore, and Uncommon recipes tend to be plentiful for sale and trade. Rare recipes are often considered either prizes worth a great deal of coin, or very strange examples of the alchemist's art. Very Rare recipes are the stuff of alchemists' legend among their kind, and are usually the product of inventive alchemists hard at work pushing the boundaries of their art.