Given that the only sailors to survive the Franklin expedition were those sent home early from ports like Stromness because of sickness, I would suggest that stories about food caches should be taken with a large pinch of salt. If subsequent search parties did find 'caches' of tinned food -and that was what the Franklin expedition carried - then they must have been tins that had been jettisoned in an effort to lighten the loads the crew were carrying and hauling. As far as I am aware, the reports of the various search expeditions make no mention of food caches on the known route south along King William Island. What was found were traces of cooked human flesh in abandoned cooking pots along with very obviously clean scraped and cut bones.