Just want to note that if you blend your berries in a vitamix it crushes the seeds into oblivion and therefore the cyanide precursor is released through the whole, in my case, jam. I just wasn't thinking it was going to be a big deal since I've had elderberry syrup a lot and been fine. But no, I'm very sick from eating just a little of the jam today. Friends, learn from me, especially if you're sensitive, don't pulverize your whole elderberries into a smooth jam, even if you've heated it. My stabbing stomach pains warn you.
