Coated packaging products, systems and methods

A method of forming a coated bag for pre-treating a foodstuff stored in the bag, the method comprising:

• providing a bag having a sidewall extending from a closed bottom end to an open top end, the bottom end and sidewall having an interior surface together defining an interior surface of a cavity;
• expanding the bag from a flattened condition to an expanded condition;
• inserting at least one spraying device through the open top end of the bag into the cavity;
• spraying an edible liquid adhesive from the at least one inserted spraying device to form an adhesive coating on the interior surface of the cavity;
• withdrawing the at least one spraying device from the cavity;
• inserting a particulate dispenser through the open top end of the bag into the cavity;
• discharging an edible particulate from the inserted particulate dispenser laterally outward toward the interior surface of the bag to embed the edible particulate in the adhesive coating;
• withdrawing the particulate dispenser from the cavity;
• and
• drying the adhesive coating to retain the embedded edible particulate on the interior surface of the sidewall.