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Salsa jar sealed 'first class'

Polypropylene replaces glass jar for hot-filled salsa served on Reno Air flights. Special linerless cap holds vacuum, yielding 90-day shelf life.

A polypropylene jar and special closure of high-density polyethylene have replaced a glass jar and metal cap to contain hot-fil
A polypropylene jar and special closure of high-density polyethylene have replaced a glass jar and metal cap to contain hot-fil
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