Jumping online real quick - at the end of lunch break -
The little packs are for sale online. Mainly used for camping and boating. With all that has been going on, I haven't had a chance to do much research other than remember watching youtube videos a little ways back when I started researching the Kimberly. This link is from the Unforgettable Fire website.
http://www.unforgettablefirellc.com/videos/rv/ Google the Biolite camping stove.
Sorry, have to run...