Glass is naturally stain-resistant, and glass storage containers are a good choice for items like beets and tomato sauce, which can stain plastic containers. The downside is that they are heavier and more expensive than plastic. Snapware Glasslock containers get good reviews for their tight-fitting lids, which attach in four places to prevent leaks. The silicone lids don't contain bisphenol A (BPA), a hardening substance that has been associated with health risks in animals. The lids do have a few downsides. Some reviewers say they can become stained with use or warped when run through the dishwasher. Reviews say the Snapware Glasslock containers are more resistant to leaks than Pyrex containers, but they do cost more. Note: A similar food storage product line called Kinetic Go Green GlassLock is sold on some retail sites, including Amazon.com, but it is not the same as Snapware Glasslock, nor is it manufactured by Snapware.
We found the best review of Snapware Glasslock containers in Good Housekeeping's testing of 28 storage containers. Another real-world test was conducted by Real Simple magazine, where editors stored leftovers for a week in a Glasslock container and found that they remained fresh and delicious. We found positive owner reviews of these containers at Amazon.com, AssociatedContent.com and Re-Nest.com, a green-living blog.
1. Good Housekeeping
In a rigorous testing of 28 food storage containers, Snapware Glasslock is named the top glass container. Testers say the container does not stain and its lids secure well with flaps that snap down on all sides. The main downsides of this container are the lids: In tests involving tomato sauce, they became stained, and they became warped when run through the dishwasher, making them difficult to reseal.
Review: Best Storage Containers: For Wet or Dry Foods, Editors of Good Housekeeping
2. Real Simple
Editors at Real Simple test an unspecified number of food storage containers, identifying their top picks here. Real Simple names the Snapware Glasslock the best container for leftovers. Testers say the locking latches provide a good seal. Editors don't identify the containers that didn't measure up, however.
Review: The Best Food-Storage Containers, Editors of Real Simple magazine
Snapware Glasslock containers earn 4 stars out of 5 with more than 40 user reviews on Amazon.com. Users like the container's tight seal and versatile use. Some users use the containers not only to store food but in food preparation and even serving. There are a few negative comments about the lids becoming stiff or warped after dishwashing. One user suggests bending stiff lids back and forth a few times to loosen them up.
Review: Snapware 18pc Glasslock Tempered Glass Storage Containers 18piece Set with Lids", Contributors to Amazon.com
One contributor gives a very detailed account of Snapware Glasslock storage containers, praising the container's ease of use and stain resistance, but also expressing a few concerns. Most importantly, the glass unit gets very hot when placed in the microwave. Additionally, glass is bulkier than plastic, and it may be hard to store the containers in a limited space.
Review: Snap, What a Happy Sound -- Snapware Glasslock Seals, Contributors to Epinions.com, July 6, 2009
Re-Nest's Stephanie Kinnear is very pleased with Snapware Glasslock containers. She says they're very easy to clean and resistant to odors and stains. Nine contributors chime in with comments; some say that Pyrex does as good a job and costs less.
Review: Good Product: Snapware Glasslock Containers, Stephanie Kinnear, June 13, 2008