[Peter Ebbesen]

Originally posted by Kelan:

Some advantages of the Cauldron of Broth is you can get it quicker research-wise, and in some cases you need to use them. If you put 2 Endless Bags of Wine on one commander, the effect is not cumulative. In cases where your commanders are leading large armies, the Cauldron of Broth can become crucial to prevent starvation.

Which is why you give Endless Bags of Wine to scouts (1 per scout) rather than your battle commanders. This has the benefit that your battle commanders do not have a miscellaneous slot used up for food and the added benefit that the supply-generating items are never lost in battle as your scouts are stealthy troops that you can keep away from the fighting while still marching with the armies.

There are many good reasons for not having your commanders lug Cauldrons around when you can have scouts carrying bags of wine.