See Research for more on upgrade mechanics, and Blueprints for more on the shop, rerolls, and item pools.
This page provides an Upgrade Tree listing all upgradable Appliances.
Players must store a blueprint labelled 
Upgradable in a Blueprint Cabinet during the Preparation Phase, then hold Interact on an adjacent Research Desk during the Customer Phase to upgrade. All possible upgrades for an appliance have an equal chance of being randomly selected. Appliances which have already been purchased cannot be upgraded.
¶ Linear Upgrades
The following appliances have a linear upgrade path. This means that it either has a single upgrade path or if an appliance has multiple upgrade paths, it will not cycle between those options.
| Base Appliance | First Upgrade | |
|---|---|---|
 Oven |
|
 Microwave |
 Counter |
|
 Workstation |
 Freezer |
||
 Prep Station |
|
 Frozen Prep Station |
 Dumbwaiter |
|
 Teleporter |
 Ordering Terminal |
|
 Specials Terminal |
¶ Cyclic Upgrades
The following appliances have cyclic upgrades. This means that they can be repeatedly upgraded, cycling between all options (excluding the Base Appliance) in a fixed sequence.
