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Why is mayo and ketchup packaged in those little tin/film like layers? View All

11 years ago - 8 months left to answer. - 2 responses - Report Abuse
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tom tom
There are two layers: First layer is the LDPE and it is mainly used as a heat sealer. The second layer is the thin metal foil and it is used to slow down and stop light decomposition. Moreover, foil is a sufficient and cost effective material to prevent leakage.

11 years ago

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The tin does not cost a lot

11 years ago


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