The Law of Contract
A contract is a legally enforceable agreement between parties which is binding in law. The parties commit to certain obligations (things they must do) in return for certain rights (things they are entitled to). Simply buying a bottle of water or your morning coffee affords the same legal principles as buying a car or entering into a million euro business deal. So, if you are buying a food or a drink, the customer has an entitlement to be served or being sold is fit for human consumption. In other words, safety of the food is guaranteed by the seller.