The Average Lifespan of Each Food Depending On How It Is Stored | Canning, Food Preservation and Food Storage Ideas, Skills & Tips by Survival Life at http://survivallife.com/2014/05/29/best-long-term-food-storage-tips/
Wean Green glass is tempered, meaning much stronger than typical glass! And the BPA-Free lids are durable and don't fall apart like some other flimsy snap-lid brands. And YES. They can go in the dishwasher, freezer and microwave (sans the lid).