Yes indeed. It is now the time for preserving too many strawberries and raspberries. So I made the jars super clean etc ... after adding jam, I put on waxed paper, but , it vexed me, that I had to touch the paper with my fingers after hours and hours of being super clean. Even putting the rubber seal onto my few Kilner jars had to be done with my yucky hands. It's too hard I tell you. Too hard.