"In the 1980s, microwaveable products were added to the Pyrex line, as more and more families needed the convenience of being able to make quick meals in the microwave."

Pyrex Sculpted Bakeware, 1990s.  Search “nothing is disposable dish towel” from Classic Cookware a Staple in American Kitchens for 100 Years

Search “nothing is disposable dish towel”

"In the 1980s, microwaveable products were added to the Pyrex line, as more and more families needed the convenience of being able to make quick meals in the microwave."

Pyrex Sculpted Bakeware, 1990s.