All this berry talk reminded me of my first jam experiment. We lived on a side of the peninsula with no canyons and thus no berries. In this arid Mediterranean climate canyons have the creeks. Also before the plethora of berries we see almost year round in every supermarket now. My sister adored Knotts boysenberry. So I bought a can of berries. Made the jam, and sealed it with hot wax (that was fun). It was really good. She still remembers it.She was7 and I was 11.