what is the difference of recipe and manual?

A recipe is a set of ingredients and instructions need to make a food item. The results vary from batch-to-batch and person-to-person based on the inherent inaccuracies such as human error and measuring in volume rather than by weight. Home cooks and restaurants use recipes.... A user guide or user's guide,also commonly known as a manual, is a technical communication document intended to give assistance to people using a particular system....