Bosnia-Herzegovina | Gourmet N from Messer keeps Vispak’s salted peanuts fresh longer and enhances their product quality. Those were the findings of a test series that Messer conducted at the food manufacturer’s premises. So now the company uses the food grade nitrogen to package its peanut snacks. Vispak belongs to AS Group, one of the largest corporations in Bosnia-Herzegovina. Its business activities also involve trade and textiles.