Purify Food and Drink

1st-Level Transmutation (Ritual)
Casting Time: 1 action
Range: 10 feet
Components: VS
Duration: Instantaneous

You remove poison and rot from nonmagical food and drink in a 5-foot-radius Sphere centered on a point within range.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the area of the spell doubles for each slot level above 1st.

Source: PHB 270, SRD

Changelog

Added upcasting option.
Changed to new PHB version, improved upcasting option to double the area.