Boni Selection offers wild herring fillet caught in the Northeast Atlantic preserved with onions in vinegar. Each jar contains 660 gr. MORE INFO ABOUT THIS PRODUCT Ingredients: Rollmops [herring (Clupea harengus), water, onions, salt, vinegar], water, vinegar, salt, fructose, aroma (contains mustard). Origin: Fished with rotating and raised nets in the North North Sea (FAO 27.IVa). Conditioned in Belgium. Storage: Keep dry, away from heat and light. After opening, keep for 2 days in the refrigerator, in the preservative liquid.