I have been storing mine for about a month now in the food saver vacuum bottles. They have a suction device and hose that pilots off the machine.
Don't know that it stores longer as of yet. My concern was would it dry out too much and that has not been an issue. When you open the jar, it's like walking into a place that has real stinky bud??? Yep my alarms and sensors go on tilt when I press that button. I love the smell of skunk in the morning!