the top of mine is magnetic, the middle (herb area) is twist off, as well as the bottom part (kiff area). Its the bottom area that wont budge. Ive tried an adjustable wrench, plyers, soaking it on hot water, boiling it, and it is still stuck. This happened last week, but the adjustable wrench took care of it. This is starting to really frusterate me, knowing all the kiff that i've built up this week.