helping to ensure that food and water are delivered in accordance with environmental and animal welfare standards, are produced in a quality environment, and are safe for consumption 

There is an expectation that food is safe to eat and water is drinkable from farm to plate, whether it is purchased in a store or consumed in a restaurant.
This is supported by a plethora of rules, guidelines, and programmes, some of which are mandated by law and others which are optional.
All of these measures aim to reassure customers that they are shielded from unethical or risky behaviour as well as subpar goods with misleading labels.

A series of tests, measurements, and certified procedures must be used on water, soil, plants, or further up the production chain in the abattoir, dairy, or food processing unit to offer this trust.
Accredited quality assurance programmes for farmers, producers, and retailers help foster trust.