The Future of Wine Quality in Cans Depends on Chemisty

FIGURE 2: The electrochemical reaction of the wine in an aluminum can be expressed as shown here. Aluminum can liners are designed to prevent the direct contact of wine with aluminum. At this point, it appears H2S production is related to molecular SO2 concentration and its ability to penetrate the liner material.

FIGURE 3: There are three liners in common use today, but only two are tenable for use in wine packaging in cans. For many reasons, the BPA-NI should be the preferred liner, primarily because it is not an endocrine disruptor as is Bisphenol A (BPA).

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