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How Long Do Mayo Packets Last Unrefrigerated? | Use Or Toss

Sealed mayo packets usually last months at room temperature; toss torn, swollen, hot-stored, expired, or opened packets. If you’re asking, “How Long Do Mayo Packets Last Unrefrigerated?”, the real answer starts with the seal. A clean, sealed, commercial mayo packet is made for room-temperature storage. Once the seal breaks, treat it as single-use. Most restaurant,

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