One can of 7oz Sterno should last about 2½ hours. One can of 3oz Sterno should last about 1 hour. 1. Block the wind from blowing out the burners on an outside chafing dish by covering three of the sides surrounding flames with a sheet of heavy duty aluminum foil.

How long does chafing fuel last?

Gel chafing fuels offer a strong, hot flame and are a good choice when an event lasts up to two hours.

Is chafing fuel reusable?

Both fuels offer environmentally friendly options, deliver high-quality heat for reliable chafer warming, and are odorless. Plus, most are resealable so leftover fuel can be reused for more than one event.