tea bag
A small porous bag containing tea leaves, used for brewing a single cup of tea.
ティーバッグをカップに入れて、お湯を注いでください。
Put a tea bag in a cup and pour hot water over it.
This black tea comes in tea bag form, so you can enjoy it easily.
Variant spelling with a middle dot; less common in everyday writing.
Borrowed from English 'tea bag'.