I took all my tomatoes out of the freezer the other day, ran them through the mill, and am cooking them down for sauce right now. I will can and process them this afternoon.
We just use a damp paper towel and dab it in some of the ash, then rub the glass. Take a clean damp towel and wipe the muck off and you have a clean glass. If your glass is needing cleaning everyday then you have an air leak and that's what' causing your glass to get smutted up.