Place a few sheets of white paper towels or a folded white rag underneath the tea stain. Do not use any colored paper or fabric when treating a stain because the dyes can transfer onto the fabric you want to clean.
In a spray bottle mix 1/4 cup liquid detergent, 1/4 cup glycerin and 1 1/2 cups water. Glycerin is available at the pharmacy.
Spray the solution on the stain and use a white rag to gently scrub the tea stain. Start at the outside and work towards the center of the stain.
Keep rubbing until you remove the stain.
Launder the item as usual. If the tea stain remains, repeat the process.