Losing power can be a real inconvenience. Once the power is back on, knowing what in your refrigerator to keep and what to throw out can be challenging. And losing food can be expensive.

How do you make sure your family’s food is safe while minimizing the expense of replacement items? If your power is out for less than 4 hours—and you’ve kept the fridge door closed—your food should be fine. But what if your fridge has been above 40 degrees for more than 2 hours? Most people know to toss perishable foods like meat, poultry, seafood, milk, eggs, and cheeses. But making decisions about other foods, especially condiments, isn’t as easy.

The USDA recommends the following for foods that have been held above 40 degrees for more than 2 hours:

• Ketchup and mustard: safe

• Relish, olives, pickles: safe

• Opened mayonnaise: discard if above 50 degrees for over 8 hours

• Fish sauce and oyster sauce: discard

• Opened creamy-based salad dressings: discard

• Opened vinegar-based salad dressings: safe

• Jelly: safe

• Taco sauce: safe

• Worcestershire sauce and soy sauce: safe

• Butter and margarine: safe

• Grated parmesan, romano, or combination in a can or jar: safe

When it comes to food safety, keep these two things in mind: First, never taste food to determine whether it’s safe to eat—it’s not a foolproof method. Second, and most important, when in doubt just throw it out.