I'll have to check mine, but IIRC, mine came in a gold color foil packet.
Thought: Have you tried cutting one in half and tried to light the interior? I suspect if you cut them open to expose fresh material you might have more luck.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.