I can talk tea if you want.

If you want to send a pic of the box, I’m curious.

Go back to the Asian market and see if they sell stuff that is like a tea ball but a little larger. Meant to hold soup ingredients. May be sturdier and or better suited to a large mug. I also use them to infuse mulled cider/wine with spices.

This spring style ball I’m talking about seems sturdier which is why I now prefer it to the normal tea ball with the latch. I’ll try to remember to snap a pic when I am home.