i agree glass jars work very well... i use them all the time.

BUT, i use them only for as long as i am going to be smoking that certain batch (month at most).

He wants to store for a long time.... i would dry it as best as posible, seal it in a freezer bag and freeze it.. ive dont it before and i know many that have.

One thing tho, NEVER put bud in a glass jar and place the glass jar in freezer/fridge. You will ruin your bud.
Peace