In my years in the meat industry I have never run in to the term "cold pack". I searched the Internet and after reviewing numerous pages devoted to using cold packs for sports injuries I ran into a "cold pack" recipe for pickles.
Obviously if anybody is cold packing meat it is vary rare and as such would lead me to belive that it is not the best idea. Why not just double wrap it? Use a freezer bag and locker paper on the outside, we've kept our own venison for 2 -3 years this way and had no problems.
Good luck,
Dave & Ruth
D & R Processing
A quick comment about "Cold Pack " deer Meat,the process is simple and is a great way to store meat in a Mason Jar For Years, Cold Packing Is A Very Common Practice Here In West Virginia. Put Cubes Or Steaks In A Mason Jar With One tsp. Of Pickiling Salt, Close jars Tightly And Boil For 3hrs. Remove jars and let them seal , TA DA !!! cold pack. this works great for stewing cubes and they will last for years if you can keep your self from eating it.