A bath mat may be cotton, microfiber, foam, or have a rubber backing, and that backing is often the part most sensitive to heat. Shake off hair and debris, check the label, and avoid overloading the washer with heavy wet mats.
Inspect the backing first
If rubber backing is cracked, sticky, or flaking, machine washing can accelerate the damage and send fragments into the washer. A badly deteriorated mat is usually better replaced.
Wash with compatible items without overloading
Balance the drum with another mat or towels if the washer manual allows. One heavy item can cause vibration during spin, while several large mats can exceed the machine’s capacity.
Use modest detergent and avoid high heat
Follow the label temperature and do not add extra detergent simply because the item is used in a bathroom. Excess product can remain in the fibers and leave the mat stiff or slippery.
Dry completely before putting it back
Rubber-backed mats often need air drying or low heat. Do not place a damp mat on wood flooring or moisture-sensitive joints because trapped moisture can damage finishes or cause odor.
Sources
- American Cleaning Institute — Laundry Basics — Household laundry, dosing, stain treatment, and fabric care according to care labels.