In preserving, as with most things, it's all about the right tool for the job. To the untrained eye, one Mason jar may look more or less like another, and while it's true they all get the job done, each has its strengths. There are two jars that have particular use: the Ball 12-oz. quilted jars and 24-oz. pint-and-a-half jars. Each of these is larger than their standard counterparts (half pint and pint, respectively), and each has a straight, cylindrical profile. This, then, makes them perfect for canning long, narrow things, like asparagus -- and green beans. They're an excellent project for the newbie preserver. It's as simple as packing the product into the jar, bringing a vinegar brine to a boil, and pouring same brine into the jar. They can be processed if you want them to be shelf-stable, but even if you just refrigerate them they'll keep for weeks. As if they'll last that long.