A light smear of vaseline on top bar of new frame reduces the amount of propolis put there in first place but obviously to late at this stage.
The comb in the frame should be evenly drawn and well capped without dips and hollows, clear of the woodwork so that uncapping will be an easier process.
Well filled and heavy for its size.Wired so the comb won’t collapse in the extractor
The woodwork should be clean not heavily varnished with propolis or blackened with usage /age.The honey should be all of one colour with no sign of granulation
& with no cells containing pollen or other debris
The cappings should be clean, white raised (not sunken and greasy) and all of the same sort (drone comb is easier to extract),
No Braula tunnels or wax moth larvae or earwigs or their “droppings”