Abstract: Systems, devices, and methods are disclosed herein for providing a sanitizing bottle. A sanitizing bottle includes a storage body to store liquid; a cap configured to removably attach to the storage body; a cap sensor disposed on the storage body to determine whether the cap is attached to the storage body; a UV emitter to emit UV light in the storage body; and a processor coupled to the cap sensor and the UV emitter. The processor is to activate the UV emitter responsive to determining, via the cap sensor, the cap is attached to the storage body. The processor is to deactivate the UV emitter responsive to determining, via the cap sensor, the cap is not attached to the storage body.