In using the cup for cooking never allow the contents to evaporate entirely. In other words, never hold an empty cup over a fire.
Keep your cup clean with hot water and soap,—preferably H & H soap.
[1311]. Canteen. Although as a rule, only soap and water should be used in cleaning aluminum, a little sand can be used to advantage in cleaning the canteen.
Particular attention must be taken to see that canteens are properly cleaned after they have been filled with coffee, milk or any other fluid containing organic matter.
Being made of aluminum the canteen is easily dented, and care must be taken to prevent this.
When not actually in use the canteen should habitually be emptied and the cup left off to dry.
Intrenching Tools
[1312]. Pick mattock. If the blade of the mattock is deformed, it should be straightened in a vise.
In the field, cracked handles of pick mattocks, shovels, and hand axes should be wrapped with cord.
[1313]. Shovel. Do not use the side edges of the shovel blade as a mattock, for this will deform the blade.