Many home cooks have some Pyrex in their cabinets. They fill glass Pyrex baking dishes with lasagna, measure out oil for making brownies in the brand’s measuring cups, and store leftovers in lidded ...

If you’ve ever spotted those colorful, nesting Pyrex mixing bowls at a yard sale or tucked away in your grandma’s kitchen, you might wonder if they’re worth more than just a pretty vintage find. The ...