In the last hour, fire crews have left the site at Easton where a massive blaze destroyed a large part of the Norbert Dentressangle cold storage plant.
Fire officers will return tomorrow to inspect the site.
Hundreds of workers were evacuated from the Norbert plant and the PAS frozen foods factory next door on Monday afternoon when the fire struck. Nobody was reported injured in the incident.
At its height about 70 firefighters tackled the blaze and continued throughout the night to deal with the situation.