Over 80% Of Preserved Foods Are Packaged In Glass Jars

A few days ago, we investigated the Auchan supermarket near our company, focus on the canning foods, such as pickled food, jam, sauce, honey, etc. 

Counting 7 brands of pickled food, and found that all brands used glass jars or bottles for their different food. For the same product, only 1 brand uses plastic jars to pack for the 2L package, others packed by glass jars.