Popsugar Living Diy Uses For Mason Jars 16 Creative Uses For Mason Jars March 21, 2016 by Emily Co View On One Page Photo 1 of 16 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Preserving Food Since mason jars are airtight, they are really great for storing preserves or pickling produce. The tight lid keeps the contents fresh and prevents bacteria from entering. Previous Next Start Slideshow DIYLife HacksUpcyclingMason Jars