Pickling Jars Supplier Delivers Custom Glass Jars to US Brand

Client Background 

One of the US-based special food producers specializing in artisan pickle products insisted on having more presence of their brands by placing them in unique packaging. They focused on up-market retailers and farmers markets and needed unique pickling jars that are both practical and attractive. His current packaging was not unique and could not support his brand with the ideals of environmental friendliness. To differentiate with the competitive market, he approached Minghang Glass to come up with a similar solution that would solve both design and stability as well as conservation of the products.

Had to Face Challenges

There were important issues in the prototype: the lids failed to seal properly (pose a risk of malfunction), torn glass jars during heat processing (a significant step in pickles), and the embossed brand name was very unconscious (losing brand visibility). These flaws threatened the launch, as American consumers demand reliable, visually consistent pickle jars for protected foods.

Root Cause Analysis

Our team identified problems: lid seals were weak due to a thin rubber gasket (0.5mm) that couldn’t withstand pressure; jars cracked because the glass thickness (2mm) was insufficient for heat shock; faint embossing resulted from shallow mold engraving (0.1mm) that didn’t transfer clearly to glass. 

Our Solution

In order to correct the pickling jars we changed to a 1mm thick food-grade rubber gasket on the lid, and tested 50 samples of airtightness. We added more glass (3mm) and annealed jars to enhance heat resistance. We further engraved mould up to 0.3mm so that the brand name was sharp and readable. 

Custom 105ml 550ml Small Glass Pickle Jars With Lids	Custom Empty Glass Bottles - Packaging for Sauces

Result​

The last pickling jars were all that one could have asked: safe lids, glass that is heatproof, and transparent labelling. The co-branded line achieved a 35% sell-through in the first month with the French client commenting, "Minghang pickling jars are a perfect fit between functionality and brand image, which is vital in our US launch.