Flare
Consumables
Flare is a device in Grounded. In-game it is described as: "Disposable, throwable light."
A device: it is a deployable tool rather than something you eat.
It is unlocked or obtained via Analyze Gunpowder Clump.
Verdict: Overall Flare is a device.
Analyze Gunpowder Clump
How to get
Disposable, throwable light.