An electric blanket keeps a bed warm for very little running cost, but sooner or later it needs a wash: spills happen, dust builds up, and a blanket stored all summer rarely comes out smelling fresh. The worry is obvious: water and wiring do not mix. The reassuring truth is that most modern electric blankets are designed to be washed, as long as you follow the care label and handle the wiring gently. This guide walks through how to wash an electric blanket safely, step by step, whether you wash it by hand or in the machine, and how to dry and store it so it keeps working winter after winter.
Step One: Check the Care Label and Inspect the Blanket
Everything starts with the care label, which is usually sewn into a corner or printed on the blanket’s tag. The label tells you whether the blanket can be machine washed, whether it is hand-wash only, and whether tumble drying or dry cleaning is forbidden. Manufacturer instructions always win over general advice, so follow them first. Before any water touches the blanket, unplug it and give it a proper inspection: run your hands over the fabric feeling for lumps, kinks or damaged wiring, look for scorch marks, frayed fabric or a cracked plug and handset, and never wash a blanket that shows damage, exposed wires or signs of overheating. Older blankets, especially ones without a detachable control, may not be washable at all; if you cannot find a label or the blanket is very old, the safe choice is to replace it rather than wash it. While you are checking, note where the connector sits, because you will need to detach the controls cleanly in the next step.
Step Two: Detach the Controls and Prepare the Blanket
Unplug the blanket from the wall first, then disconnect the control handset from the blanket itself. Most modern blankets have a plug on the blanket that the control lead clicks into; release it carefully and set the control and lead aside somewhere completely dry, because the handset itself must never be washed or submerged. If your blanket has a fixed control that cannot be removed, the care label will almost certainly prohibit immersion washing, so stop and follow the maker’s instructions instead. Next, deal with any marks: a drink spill or a worn patch responds well to gentle spot treatment with a cloth and a little mild detergent before the main wash, in the same way you would pre-treat sweat stains on clothes rather than scrubbing them afterwards. A short pre-soak in cool or lukewarm water also loosens dust from a stored blanket; fifteen minutes is plenty, and avoid hot water, which can damage the internal insulation around the wires.
Step Three: Washing by Hand
Hand washing is the gentlest option and suits almost every washable blanket. Fill a bath with lukewarm water and add a small amount of mild detergent; if you like a low-chemical option, our recipe for DIY laundry detergent works well at half strength. Submerge the blanket (without its controls), press it gently up and down so the soapy water moves through the fabric, and let it soak for a few minutes. Work any grubby areas softly with your hands, but do not wring, twist or fold the blanket sharply, because bending the internal wires at hard angles is what shortens their life. Drain the soapy water and refill with clean lukewarm water, pressing gently to rinse; repeat until no suds remain. To remove water afterwards, press the blanket against the side of the bath or roll it loosely in a clean dry towel and press: never wring it out like a sheet.
Step Four: Washing in the Machine
If the care label allows machine washing, use a large-capacity machine so the blanket has room to move without being crushed. Fold or roll the blanket loosely, place it in the drum on its own, and select a gentle or delicates cycle with a short, cool or lukewarm wash and a slow spin. Use only a small dose of mild detergent, and skip fabric softener, bleach and stain removers with bleach, which can damage both the fabric and the wire insulation. Some makers suggest stopping the cycle after a short wash and rinse rather than running the full programme; follow the label if yours says so. A rinse with a splash of vinegar can help shift any musty storage smell, and our guide to white vinegar in laundry explains how to use it without leaving a lingering scent. When the cycle ends, take the blanket out promptly, support its weight evenly so the wet fabric does not drag on the wiring, and move straight to drying.
Step Five: Drying Without Damaging the Wiring
Drying matters as much as washing. The safest method is air drying: drape the blanket over a clothes airer, a rotary line or a couple of chairs so air reaches both sides, and gently reshape it to its original size while it is damp. Keep it away from direct heat such as radiators, and never switch it on to dry itself, a mistake that can overheat and damage the wiring. Do not tumble dry unless the care label explicitly allows it, do not iron the blanket, and avoid pegging it by one edge in a way that lets the full wet weight hang from a small section. The blanket must be completely dry before you reconnect the controls or plug it in: trapped moisture and electricity are a bad combination. Once dry, reconnect the handset, lay the blanket on the bed, and run it on a low setting for a short while to check it heats evenly, with no cold patches that might suggest damaged wiring.
Step Six: Freshening and Storing Between Winters
Most blankets only need a full wash once or twice a season, but a stored blanket can pick up a stale smell. Shaking and airing it outdoors on a dry day refreshes it without water, and our tips on how to remove odour from clothes apply just as well to bedding. For storage, fold the blanket loosely or roll it gently with the control lead coiled separately, and keep it in a cool, dry cupboard rather than a damp loft or garage. Avoid piling heavy items on top, which can kink the wires over months of pressure, and skip vacuum storage bags for the same reason. A light cotton storage bag keeps dust off while letting air circulate, the same principle behind keeping everyday washes fresh, as our guide to how to make laundry smell fresh explains. Next winter, inspect the blanket again before its first use, and it should be ready for another season of warm beds.
