On the Valiant we had ration heaters. This was a soup can shaped receptacle that could, with luck, heat a can of soup to lukewarm in about four hours. There were two of them, between five crew, or six if you were on a Lone Ranger.
Approaching Nairobi it was decided to jettison remaining packets, wrappers and tins over the side. This was accomplished when we were below 10,000ft by depressurising the cockpit, opening the co-pilots DV panel and shoving everything out.
After we had finished the Crew Chief enquired as to whether we realised that No3 engine was behind, and at the same level as, the cockpit.
We continued without touching No 3 until the final roundout. No sign of any damage, however.
Coming back we collected First Class snacks from BOAC. Their merangues exploded quite well.