A persistent cold front has blown into the frozen foods section of the grocery store. Sales volume has been flat or down over the course of the past several years thanks to consumers’ preference for fresh offerings, lack of product innovation, the economic downturn, and a less-than-ideal retail environment, among other factors. For frozen foods market leaders like Nestlé, ConAgra, and H.J. Heinz, lackluster category performance has been a concern.
Now, however, key industry players i…