Liquid fuel should always be contained in the correct container and

Flammable liquids must be stored in closed containers. Smaller quantities of flammable liquids can be stored in approved containers and portable tanks. Up to 1 pint of a Category 1 flammable liquid, or 1 gallon (gal.) of a Category 2–4 flammable liquid, can be stored in a glass or approved plastic container.

Ithink is public relations

Maximal strength i believe