So in a month or so, I will go to Sweden to backpack for 30/40 days. I will walk the E1 route and it will take me from south to the middle of Sweden in about 1000km.

Now, walking everyday and camping in the wild( without encountering any human life for some days in a row) what should I use to cook on? Is it best to use a propane/butane stove? Or use a white gas/ petrol stove(which burns a lot of different fuels.

Weight is also an issue so right now I prefer the propane/butane stove. But how long will it last( cooking lunch, dinner and maybe even breakfast) and how easy is it to find cartridges for this stove?

Any experience and advice would be of great help.