If your canning meat products quarts are the largest container you can use, half gallon containers would require more processing time than most household pressure cookers can provide. I have two large All American Canners I purchased on Ebay for reasonable prices. Those are quite expensive new over $200 as I recall, but Presto and others build cheaper pressure cookers available at most home stores, check Wall-mart, or a similar store and you can find one that will hold eight to ten quart jars for about $50. Cheaper on Ebay perhaps. But you can also use the same cooker for "hot water bathing" without the pressure lid for making pickles, or canning most veggies, so you get a multi purpose unit for a good price.