As a fact, disposable kitchen gloves MUST be blue. This is not a preference or a habit but an obligation imposed by various international agencies relating to food safety and hygiene.
To explain this, let’s note that blue color is the only one that is rarely present in all types of food. Therefore, if a piece of the glove is torn during the preparation of a dish and falls inside the latter, its blue color will help us identify it immediately in order to remove it in a much easier way.
Moreover, if it happens that we don’t notice in due time the fall of such piece of glove in the food plate, its blue color will immediately make it noticeable.