under the water.
put the lid on your pot and leave it sit on a low heat (with the shirt inside) for 30 to 45 minutes.
after the 30-45 minutes have passed, turn off the burner and pour the contents of the pot (t-shirt and salt water) into a strainer or colander.
once the shirt has cooled enough to touch, rinse it thoroughly to remove the excess salt residue.
run the shirt through a normal wash and dry cycle.
the salt method also did not cause any damage to the shirt or the washing machine, so this experiment is also totally safe to try.
i noticed that the collar of my shirt was much softer and 