Grocery Operations

MINNEAPOLIS -- Supervalu here is equipping 20 of its Minneapolis division trucks with chlorine-free refrigeration systems as part of an eventual fleetwide conversion.The rollout follows an initial purchase of 18 transport refrigeration systems by Supervalu last year for a pilot program. Officials said they consider the new purchases a continuation of the pilot."I think [the units] will expand to other

byChris O'Leary