Mess tin
Mess tins were used to prepare or heat food but they were also used as a container from which to eat and drink. The tins were lightweight and sturdy but they became hot very quickly when heated.
Australian infantry soldiers used the D-shaped mess tins (pictured), while the mess tins used by the Light Horse had a shallow, circular design and was strapped to the saddle.
Why would soldiers have been required to constantly clean their mess tins?