Posted: 31/08/2015 at 13:35
Damson seeds contain cyanogenetic glycocides, a substance that can change into a killer in the body. The body can detoxify small quantities of cyanide, so lots of Damson pits would need to be consumed to die from the poison.
Actually adding some stones to the Jam gives it am almond flavour.
Makes eating it something of an adventure though!