Comes in a 4oz jar for 6 bucks(US$)plus shipping etc. Contents as listed: water, mustard seed, mustard oil, horseradish & spices. Must be kept refrigerated after opening....anything ya wanna know, ask the old guy! Cheers, Doug in BC > Rob > "Barry of the mount horeb mustard musuem says that the > Royal bohemium is the strongest mustard there is" > Is that mustard dry (powdered), or comes in a jar? >