Best for Leftovers
Snapware Glass Lock, $9
The test: Refrigerate minestrone or mac and cheese for a week.
Why it won: The locking latches create such a good seal that “food tasted as if it had been prepared the night before.” Even when exposed to a tomato-based soup, the glass didn’t stain. In seven sizes; 24 ounces shown.
To buy: bedbathandbeyond.com.