An obvious point, but when I’m carrying anything oily I double-bag it and carry it with the containers upright at the bottom corner of the kangaroo pocket of my pack – well away from everything else. So if the container were to leak for any reason, it wouldn’t cause any damage to my gear.
I’ve had good luck with pharma-grade containers bought from my local chemist. They are made from quality food-grade plastic with reliable seals – you need the ordinary screw-tops, not the child-resistant ones. My local guy carries both bottles and jars. Used these up to about 2500 meters with no leakage.


