'Flexible plastic' items like potato chip bags are often thrown away, but can be recycled back into food-grade films using an award-winning COtooCLEAN process. So-called flexible plastics aren’t very ...

Water used to wash recycling materials in the study became progressively darker as it was reused. Photo courtesy of Greg ...

Here's an inside look on how the mysterious cleaning method unfolds. Edna M/Getty Images For stubborn stains and delicate fabrics, dry cleaning can be a lifesaver. But how does dry cleaning work ...

It can be easy to overlook or put off cleaning major kitchen appliances, and that’s especially true of the dishwasher — after all, we use it to clean things, so we don’t think of it as getting dirty.