Years ago I worked for durers jam. Had a house full of the stuff for years.
As if one jar was damaged the whole pallet was binned in fear of other maybe being conraminated. Yet 90% of the pallet was fine but didn’t matter some one used sort them out put decent ones in rest room help yourself.
Don’t exist now but they used make jam for kwiksave and Tescos . All the same stuff just a different label