Calvon MSC tuna is canned in water and is conveniently sold in a pack of three easy-open jars. The contents of one jar are enough for a lunch salad, snack or bread topping. The compact jar is easy to carry and is just the right dose to use at one time. Calvo is one of the few canning manufacturers in the fishing industry that is self-sufficient throughout its production chain from start to finish. For this reason, we can promise that the tuna you buy from the store is not only of very high quality but also produced as ethically and responsibly as possible. MSC certification can only be obtained by a fishing company that meets the international best practice principles for responsible fishing throughout the production chain.