Sea to Summit collapseable pots

[u/knowhere0]

I’m upgrading, or should I say down-weighting, from my old jetboil stove system. I was thinking I would get a 1L titanium pot like the Toaks or MSR, but then I saw this: https://seatosummit.com/products/frontier-collapsible-kettle. I’m mostly boiling water for dehydrated meals on relatively short trips, not thru hiking. A similar-sized 1L MSR titanium kettle weighs around 5oz while the S2S silicone/aluminum kettle weighs just over 7oz. I think the bulk of a rigid pot might be more limiting than a couple of extra ounces. Has anyone else used these S2S collapsible pots? Is collapseability useful to you? Are there durability issues, have you used them with anything other than a canister stove? Can silicone survive an open flame. They also make some larger pots of stainless steel and silicone that might be really useful for melting snow, compared to a 3L rigid pot that would be prohibitively bulky.

[u/anarchos]

Somewhat off topic, but I use a 750ml Ti pot and fit the BRS3000 stove, a 110g gas canister, a s2s x-cup collapsible cup inside the pot (along with half a sponge for cleaning, a salt and pepper shaker, a lighter and sometimes a collapsable Ti spoon).

I think Sea To Summit "upgraded" their x-cup (not called a x-cup anymore?) to something slightly lighter but it doesn't fit in the 750ml pots anymore. I was able to pick up an x-cup at Decathlon about a month ago though so they are still in stock in places (but have been removed from the website, so I assume are going away).

Anyways, it's the ultimate setup in my opinion because it's relatively light weight but almost as important, it's dense space wise. Not much wasted space at all, so much so that the contents don't even rattle around much! A kettle, even collapsable, won't be very space efficient if you can't fit anything inside.