Otherwise healthy looking tomatoes split open before they're even fully ripened. What happened, how can you stop it from happening and are they still OK to eat?
There may be no tomato problem more heartbreaking than blossom end rot. This tomato problem doesn't show itself until the tomato begins to ripen and by then, it's too late to do anything about it. What's more, all the tomatoes on the plant are probably going to follow suit. If blossom end rot is a reoccurring problem for you, take simple steps to avoid it at the beginning of the season.
You can wait and wait and wait some more, but some tomatoes are never going to fully change to red. Sometimes it's just the type of tomato you're growing and sometimes