Hello, hoping someone can help me.
Just made strawberry jam for the first time.
I processed my jams for 10 minutes in boiling water (I live at sea level if it matters) and then turned the heat off and let the jars sit for 5 minutes. When I took the jam out, about 4 or 5 of them popped within a few minutes of sitting on the table so I know about half of the jars sealed fine.
The other ones did not pop - although I've heard they can take a few hours to pop as they cool.
While the remaining jars were still hot, I pressed down on like 2 of them. There was movement, but now they are flat.
I'm not sure if these sealed correctly and I just "helped them along" by pressing down or if these did not seal correctly and now, since I finger tested them when they were hot, I'll have no way of being able to tell if they sealed correctly when they are cool.
Since half of my jars sealed fine do you guys think the rest would have popped anyways if I hadn't messed with it, therefore the seal is fine?
It would be a shame to throw it all away. Is there any other way I can test if it sealed properly?