After blending, I put mine in a pressure cooker for 30 min. Blend it again and then jar it. Mine has lasted for months. Enough to get me thru the winter. South of Houston................ Jerry Vaughan wrote: I have kept some in the ice box for as long as five weeks with no ill effects. I can't seem to get it to last any longer than that. Apparently the longer it sits in the ice box the more of it disappears.