So my suggestion could be to buy a different model of ground poppy seeds, if you can. A hint of bitterness is ordinary, and might be balanced out by incorporating sugar or honey during the cake batter. But when it’s an disagreeable bitterness, this shouldn’t be the case. -edit- Also https://buy-dried-poppy-pods55310.ziblogs.com/32182963/top-guidelines-of-poppy-seeds