Color yellowed underwear

You do not have to throw away white underwear that turns yellow, but otherwise is okay. The laundry, bras, singlets, etc. put one hour in freshly brewed black tea and you have a beautiful skin color.

Eifelgold: As if here still None / None a forgotten shirt or underwear, which has yellowed with the ravages of time out of the closet.
You are all so perfect.

It's one thing to voice your opinion, others to get offended.

And now to the tip: Sounds plausible and is just tried on the next yellowed shirt. You know, where the hanger on the shoulders likes to leave a yellow strip.
If it works, fine. Use: a tea bag.
If not, garment bag.

Where is the problem?