How Long Can You Leave Cooked Bacon Out. Alternatively, bacon that has been opened but has not been cooked will only keep around 1 week in the refrigerator and up to 6 months in the freezer. Packaged sliced bacon may keep longer than this, but it's important to check the expiration date on the pack to be sure.
You can freeze bacon for up to two months for longer storage, or cook your bacon and then use it within another five to seven days. At room temperature, bacteria grows incredibly fast and can make you sick. That being said, it should last quite a while.
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If it’s a hot day, then food should only be left out for an hour. If the ambient temperature is over 90 degrees, especially in the sun, the food shouldn't be left. The general rule of thumb is that the time the food spends between 140°f (60°c) and 40°f (4°c) should be no longer than two hours, total. And when it comes to leftover cooked bacon, the usda recommends eating it in the next four to five days if stored in the fridge or within a month if put in the freezer.