Statement from Heinz on Whether or Not You Should Refrigerate Ketchup
Because of its natural acidity, Heinz® Ketchup is shelf-stable. 
However, its stability after opening can be affected by storage conditions.
We recommend that this product, like any processed food, be refrigerated after opening. 
Refrigeration will maintain the best product quality after opening.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!