>>2222076It does leak out a little but it is very light so it does not leak out like salt would, I have not tried the chunky batch yet but I guess it would leak out a lot less or not at all. The perlite is not needed for the stove to work, it just makes it safer.
>>2222106The soda can with perlite cost almost nothing and is very fast and easy to make.
If you want a stove that works better and is more rugged, then an aluminum bottle with carbon felt inside the hollow toroid circle would be better in every way, but it is harder to make.
https://youtu.be/Ty13Im0wBhUhttps://youtu.be/dDMJs0lvlNwhttps://youtu.be/k-oU4UwAQ70https://youtu.be/VI4HhuS6_qU 