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Dear Heloise: Is it really necessary to refrigerate mustard once it has been opened? Please answer this question so the debate in our household can be over. – Annette in Oklahoma

Ah! The old to-refrigerate-or-not issue. We took your question to a couple of leading mustard manufacturers, and here is what they had to say: They both agreed that refrigerating mustard will help maintain its flavor, but if you prefer to eat mustard at room temperature, that is OK, too. Commercial mustard doesn’t have any ingredients in it that will spoil outside the refrigerator.– Heloise