How sugar contributes to aluminum beverage can corrosion
Aluminum, malleable, lightweight, recyclable, and safer than glass, is widely used for beverage cans. Its resistance to corrosion depends in part on the quality of the protective internal coating. When this coating presents defects in application or uniformity, corrosion can develop, particularly in the presence of sugar.
This article explains the mechanisms involved and proposes a protocol to evaluate the quality of can coatings.