Non-colors for beer packaging
J. M. Teague and E. F. Schaefer
Color in beer packaging is becoming more important every year. Consumers are wanting, appreciating, and reacting to color more than ever before. Paper describes the development of a new dark glass for bottle manufacture. The technique entails using a standard amber, which is an iron sulfide color, and adding a small amount of metallic oxide which combines with the sulfides present to form an amber of great color density. Manufacturer's claims: The glass provides optimum protection against visible light while providing all the traditional flavor retention features of amber glass.