Natural Grocers has introduced its latest house-brand product: Natural Grocers Brand Organic Mussels. These mussels are sustainably rope-grown in Chile’s waters and fully cooked. The Organic Mussels are part of the Natural Grocers Brand Frozen Seafood line, joining offerings like wild-caught cod and wild-caught shrimp. Raquel Isely, vice president of marketing at Lakewood-based Natural Grocers,…