Run the dryer for a few minutes to warm and soften the gum. Put old rags in the dryer so it’s not running empty.
Mix 2 tablespoons of powdered laundry detergent and 1 cup of hot water in a bowl. Whisk the mixture to dissolve the detergent completely.
Dip a sponge into the mixture, and use it to clean the gum from the dryer. Press hard with the sponge to work the sticky gum loose.
Wipe away loose pieces with a wet paper towel.
Run the dryer for five minutes with a few rags in it to heat the gum on the dryer wall.
Spray a fabric softener sheet with laundry stain remover.
Soak the fabric softener sheet in hot water to saturate it completely.
Press the wet fabric softener sheet against the gum. The dryer sheet will stick to the gum. Leave it there for five to 10 minutes.
Remove the dryer sheet. The gum should lift away from the dryer wall. If it’s stubborn, use a wet sponge to wipe away the remaining residue.
Soften the gum by heating up the dryer with damp cloths inside for five minutes.
Mix 1/2 cup white distilled vinegar and 1/2 cup hot water in a bowl. You can use straight vinegar if you wish; water simply minimizes the vinegar’s odor.
Dip a rag into the vinegar solution.
Wipe away the gum with the rag. You may have to use a little elbow grease to remove all the gum. Use a plastic spatula to lift off the gum.