Published May 1, 2010. From Cook's Illustrated.
With all the discussion about the potential health hazards of plastic storage containers, is glass really the way to go?
Many consumers have decided to avoid plastic storage containers after learning about the possible ill effects of microwaving in plastic, leading to the resurgence of glass food storage. We chose three and ran them through the same tests as our plastic containers (with the exception of dropping them onto the floor). Two were oven-safe, but other design flaws knocked them out of the running. A third aced all our tests, and was equal to the top-ranked plastic containers. If it weren’t considerably heavier and more prone to breakage, we’d consider choosing glass as our favorite storage container.