Zippo Hand Warmer - storagea

Posted by The1uniquesnowflake@reddit | preppers | View on Reddit | 13 comments

How long until the fluid become inert if its poured inside and left alone in storage?

I fill them up and use them for the days its brutal cold. But would love to have one or two just ready to go when needed. Suggestions on storage methods for this? Risks? Fumes? Bad idea?