The ultra light trekking community seems to develop the equipment at the writing desk with an electronic letter or drug balance. The decision to use so little pots can't be made in forest and field.
I own a titanium pot, 750 ml, and I'll keep using it as a mug. But I was very glad to find yesterday in a military surplus shop a nearly unused Wehrmacht mess kit, approximately 1500 ml + 400 ml in the lid, and I intend to use this for the rest of my life, because that is simply a practical construction and good size, also for storing food mouse proof.