Guest editorial by David MortmanIt’s early fall here in Ohio which means it’s time for the second round of canning for the winter. So last weekend my kitchen was covered in bushels of apples and pounds of greens and a whole lot of canning jars. As you know by now, I love to cook and I love a well-designed kitchen tool. Mason jars in particular make me extremely happy. They were invented in 1858 and fundamentally haven’t changed in the subsequent 150 years.