Just jarred five ounces of PC/Russ O. Log Cabin, which is a Va/bur/Cav classic American blend, especially suitable for cobs, breaking in pipes, and smoking outdoors or on the porch. This is one of my favorite genres of tobacco. The five ounces just filled the jar. In fact I had to pack it down a little to get the last half ounce in the jar. I assume, since this is to be smoked starting right away, there's no harm done with the jar brim full, and I'm not trying to age the blend. Do you pack your jars to the top?