Not in Arizona, heat must break them down, (they kept forever in Indiana), if you keep them in the truck box like I do, they will not work after a year. I buy a couple new ones every year out here and throw out the old ones. ----- Original Message ----- From: "Tony Muller" <acmuller1@xxxxxxx> To: <az-observing@xxxxxxxxxxxxx> Sent: Thursday, September 07, 2006 9:46 PM Subject: [AZ-Observing] Re: astro bag > They'll last for years if not exposed to air. > > -----Original Message----- > From: az-observing-bounce@xxxxxxxxxxxxx > [mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Goodwin > Sent: Thursday, September 07, 2006 8:52 PM > To: az-observing@xxxxxxxxxxxxx > Subject: [AZ-Observing] astro bag > > After reading the last two articles on cleaning out astro-bags I decided > to look at mine. I found some of those self heating pads in a zip lock bag. > Does anyone know how long you can store these? I bought them last year for > the 5MM event. Do I need to replace them? > > Clear Skies > > Andrew Goodwin > > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.