What is the minimum amount of water that should be stored per person in emergency supplies?

The minimum amount of water recommended for emergency supplies is 1 gallon per person per day. This guideline is based on the general requirement for adequate hydration, as well as for basic hygiene and food preparation. In emergency situations, maintaining proper hydration is crucial, especially for vulnerable populations such as older adults, who may have different hydration needs due to age-related changes in body composition and loss of thirst sensation.

Providing a full gallon accounts for these needs, ensuring that individuals can stay hydrated even in circumstances where access to water may be limited. This amount also allows for the essential activities of eating, washing, and in some cases, cooking, which can be critical in emergency situations. Therefore, the 1 gallon per person per day standard is a practical minimum to ensure health and safety during emergencies.