Even if it's just a zip lock bag, it will keep your stash fresh and smell minimized. Not everyone knows how amazing baking soda is when it comes to absorbing smell, but it is a great tool to keep your stash box smelling more like just a box. Just change it out every couple of weeks.
They are commonly used in airports, train stations, ports, and other locations to sniff out drugs that may be concealed on a person or in luggage. However, sniffer dogs are not capable of smelling illicit drugs inside the human body. Their training focuses on detecting the odour of drugs in the air or on surfaces.