Vermicomposting, worm bin, composting with worms community and forums
What brand are you using? I alternate between Lipton & Luzianne, using their family -sized bags for iced tea, caffeinated, and the only thing I find left is the staples..... Except, now that you mention it, recently I've been finding the strings... Wonder if those are now synthetic?
Wonder if writing the tea bag company would make any difference? Sometimes companies find that China has added ingredients they never authorized into their products. Take Victoria's Secret and the formaldahyde bras that were making women sick! Or the poison dog and cat food. Or the lead-painted children's toys. Hmmmm. You're using which brand???