Your hotel minibar feels cold. But does it meet the storage instructions for your peptide pen? A chilled bottle of water cannot answer that question. Start with the label for your exact product. Ask whether the fridge stays powered when you remove the room key. Then check the temperature with a suitable thermometer. A numbered thermostat is a setting, not a reading in degrees. A single reading is only a snapshot. Minimum and maximum readings can reveal changes while you are away. Compare them with the required range, and check again after a power interruption. Avoid a freezing compartment or direct contact with an icy surface when the product must not freeze. Keep its packaging and follow the supplied handling instructions rather than guessing from another product. If the temperature goes outside the instructions, record the product, readings and likely duration. Ask for product-specific advice. Putting it back in the fridge does not prove that nothing happened. Check when you lose access to the room and where suitable storage will be available next. The full guide below gives you the questions to send the hotel before arranging delivery.