the difference between jelly and jam is one is easier to spread on bread than the other the same difference between soft and cold butter it takes awhile to mix jelly in a jar to get it to the right consistency to spread on bread but
Jelly typically costs more than jam simply because the production methods are different jam is less effortless to make than jelly some of us are jelly people some of us are jam people even though we have to jam the jelly to spread it on the bread