Not a lot of weight; in fact, these two items have a great Return on Investment when their utility is balanced against weight and cost, and in our opinion, is essential for your ruck. The ubiquitous USGI surplus canteen cup and the more modern stainless steel canteen cup lid, available through various outlets.
We prefer the old WWII style handle versus the newer ‘butterfly’ grips because the handle allows the user to keep further away from any flame when using the canteen cup as a utility pot for food or when heating water. But it’s a matter of personal choice.
The lid is cheap, fits fairly well, and does a yoeman’s job of keeping unwanted debris and bugs out of your soup, coffee, tea, water, whatever when preparing. It also helps in keeping the hot drink warmer longer if you must put it down for a bit to complete a chore.
DTG staff are maniacal on keeping the inside of the cup and the bottom of the lid clean to work against foodborne illnesses, but we let the outside get sooty black from sitting on either a stove or coals from the fire. The soot will actually help insulate and heat the stainless steel more quickly after several uses.
You can, if you so choose, put foldable spoons or ‘sporks’ inside along with various items that make mealtime more enjoyable as they weigh very little (salt, pepper, tobasco, napkins, coffee/tea tubes or envelopes) so long as you make sure nothing clanks when being moved around.
During winter, nothing is better for melting snow and boiling the water like a canteen cup!
We’ve found nothing that takes it’s place or is as useful as these old surplus items. Sure, you can spend top dollar on titanium cups and pots that come with ‘koozies’, but you’re using money that can be spent on other preps. My canteen cup, new, 1963 issue, cost $12 out the door and the lid was $6. Used canteen cups cost even less, and all you need do to get them ready for the field again is run them through your dishwasher or do it by hand. Titanium equivalents cost in the $45 range and go up from there, depending on the size and brand.
So, you decide what you’d like, but always make sure you have a utility pot and lid in your ruck.
You’ll be glad you did.