Smoking Nomad
Member
technically, Mylar can hold the smell at a molecular level. The only molicules that get through it are helium, and nitrogen. It is the seal and packaging environment that compromises us to dogs. Without a truely sterile environment for packing, dogs will beat us every time. Just addressing the original question. Using alternative smells that inhibit the dogs ability may be key, but haven't seen success without queing handler.