After painting jar upside down from top to bottom (mouth of jar), once dry and after a second coat do you paint rim of jar last? (itallstartedwithpaint.com)
I take canning jars, place them in boiling water, take them out, place a funnel over the jar, ladle the hot apple butter into funnels until to fill the jars (leaving 1/4 - 1/2 inch gap), place canning lids on the jars (making sure the rim of the jar is clean and no apple butter has gotten on it which will prevent it from sealing) and then tighten the bands over it. (dineanddish.net)