Cotton blankets are not difficult to care for because they can be laundered at home using the gentle cycle of your washer and dried on medium heat. If the cotton blanket is not soiled, you can freshen it by simply hanging it outdoors briefly.
Washing and drying
Load the cotton blanket into the washing machine and close the lid. It is OK to add a moderate number of other cotton items to the washer.
Refer to the instructions in your washing machine manual to determine how much laundry detergent to use. A mild, liquid detergent works best on cotton blankets.
Set the washing machine for the gentle cycle. Select settings for cold wash and cold rinse to avoid shrinking. Start machine.
Remove the washed blanket and other items from the washer and put them into the drier. Clean the drier filter as recommended by the machine's manufacturer. Set the machine to a delicate setting with medium heat and start the cycle.