Some good info above
I've made a couple of cozies from the Reflectix stuff and have been really impressed with how well they insulate. The first one I made was for my Alpkit MyTiMug:
Inside the cozy lives a Reflectix lid for the cozy, the MyTiMug, then inside the mug is the rest of my cook kit. The circumference of the cozy is the same as the size of my X-cup which sits nicely on the bottom, all of this then lives inside the mesh stuff sack that came with the MyTiMug. Another benefit of the mug cozy is that it provides a bit of protection for the mug whilst it's in my bag, plus it protects my bag from getting dirty if the mug gets sooty etc on the outside. I was originally using this set up as follows:
1) Boil water in the mug
2) Place meal to be rehydrated in the cozy (inside a pour-n-store bag)
3) Pour water in to meal
4) Cover and leave for ten mins ish to rehydrate
This worked ok but it was always a bit of a faff to squeeze the pour-n-store bag In to the cozy so I made another cozy which suits the size & shape of the pour-n-store bags better:
As mentioned above I don't think the bigger Heineken cans are made any more so you might struggle to track one down. I've got one of the Zelph Flat bottomed/ridged Fosters pots as well as one of the half sized 2 cups pots from Zelph, and whilst the ridges etc do add an incredible amount of rigidity to the can, it's still a Fosters can at the end of the days and is pretty flimsy. I wouldn't consider taking it as my only pot on anything other than a day walk, and even then I'd probably opt for something else just incase it got squashed in my bag. It's a funky little pot though and it weighs very little, but for me it's not really practical so I'd much rather carry the MyTiMug.
If you're after a really light weight cook set you could put something together similar to the LiteTrail set, similar size pots are available from the bay and you can get the rest of the bits and bobs reasonably easily or swap things out if you don't want to use esbit tablets.
Hope some of this rambling has been of use!
Matt
I've made a couple of cozies from the Reflectix stuff and have been really impressed with how well they insulate. The first one I made was for my Alpkit MyTiMug:

Inside the cozy lives a Reflectix lid for the cozy, the MyTiMug, then inside the mug is the rest of my cook kit. The circumference of the cozy is the same as the size of my X-cup which sits nicely on the bottom, all of this then lives inside the mesh stuff sack that came with the MyTiMug. Another benefit of the mug cozy is that it provides a bit of protection for the mug whilst it's in my bag, plus it protects my bag from getting dirty if the mug gets sooty etc on the outside. I was originally using this set up as follows:
1) Boil water in the mug
2) Place meal to be rehydrated in the cozy (inside a pour-n-store bag)
3) Pour water in to meal
4) Cover and leave for ten mins ish to rehydrate
This worked ok but it was always a bit of a faff to squeeze the pour-n-store bag In to the cozy so I made another cozy which suits the size & shape of the pour-n-store bags better:

As mentioned above I don't think the bigger Heineken cans are made any more so you might struggle to track one down. I've got one of the Zelph Flat bottomed/ridged Fosters pots as well as one of the half sized 2 cups pots from Zelph, and whilst the ridges etc do add an incredible amount of rigidity to the can, it's still a Fosters can at the end of the days and is pretty flimsy. I wouldn't consider taking it as my only pot on anything other than a day walk, and even then I'd probably opt for something else just incase it got squashed in my bag. It's a funky little pot though and it weighs very little, but for me it's not really practical so I'd much rather carry the MyTiMug.

If you're after a really light weight cook set you could put something together similar to the LiteTrail set, similar size pots are available from the bay and you can get the rest of the bits and bobs reasonably easily or swap things out if you don't want to use esbit tablets.
Hope some of this rambling has been of use!
Matt
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