I bought a jar of blueberry jam at Saturday's market. The stall next to ours had three kinds of jam - blueberry, mulberry and strawberrry. None of the jars had labels. I was a bit aghast when the stallholder took the lid off a jar to check which kind of jam was inside! Either she's broken the seal, or, more likely, it wasn't sealed to begin with. And needs to be eaten sooner rather than later.
Yesterday I made tree tomato (tamarillo) chutney. It's a wonderful rich, red colour. Very similar to strawberry jam :