If you've ever tasted homemade jam, you know the delicious rewards canning can bring. But although it is fun and rewarding, canning is not an easy task. First of all, you need to grow or buy fresh fruit and wash it carefully. Then the clean fruit has to be mashed, heated to a boil, and mixed with sugar and pectin to get it to gel. Once the fruit is ready, it must be poured carefully into clean, hot glass jars. Next, add a lid and submerge the jars in a boiling water bath for about 10 minutes. As they cool, the "pop" of the lid tells you they have sealed. Which is an objective summary of the passage?