IMO  the best insulating "material" is newspaper/duct tape.
we werent able to eat steaks the first night because they were still frozen solid.  Jan

My son, the Portage Monkey, age 16 eats lots of dogs. Cheaper than steak. What do teenagers know?

Be prepared!
Do a good turn daily! (this qualifies for that)

Great idea to make a pack with the liner.
Thanks for sharing.  

I take steak, hot dogs, and frozen chili (the kind that comes in a plastic tube like pork sausage).  It all stays nice in my cold sack. Ever stepped out of a swimming pool on a 95 degree day and been hit by a tiny breeze that made you shiver? It's the same principle. I had my wife make me one. Basically a canvas bag with a terry-cloth lining. Plastic (so it wont rust) zipper sewn in the top. A couple of D-rings sewn to the corners and I can clip it onto the outside of a portage pack. I dip the bag in the lake to keep it wet. Doesnt need to be dripping wet, just wet.  It'll keep butter firm for the entire trip. Just keep it wet and lay it out of the sun. An old boy scout trick. I had my Canoeing merit badge sewn on the outside. It that sick or what?

Cache Lake Foods had hot dogs that didn't need refrigeration (You need to Login or Register to view media files and links) Looks like they're sold out now.  I don't know if they're gone for good or just awhile.

I've taken hotdog several times.  We usually eat them within about the third day in with beef rice.  The teenagers sure scarfed them down.

Hot Dogs can stay pretty good as they have a lot of salt etc.. and don't go bad as easy as you would think. A backpacker cooler, ie a wet white towel, out of the sun will keep items pretty cool for a few days. just make sure you cook them and you will be fine, I love the simple Velveeta Shells and cheese with Hot dogs.

If after 5 days, you're not feasting on fillets...  

No wonder the gulls are plotting and getting revenge.  

Welcome aboard!  8) 8)

During the fall or spring, keeping hotdogs cold is not too much of a problem.  During warmer periods, I'd recommend that you freeze the hotdogs and wrap them in several layers of insulating material before placing them deep within your food pack.  There are those that pack in jugs of ice in the food pack to keep things cold.  Of course, you should make an effort to keep the cold stuff out of direct sun light where possible.

dd

BTW:  Welcome aboard.

There were hotdog recipes in this topic, how do you keep them cold for long as 5 days?