Shower drains stinking like a swamp monster's lair? Don't toss that day-old coffee! The natural acids in brewed coffee attack soap scum and mildew better than expensive chemicals—and it's free. Just pour 1-2 cups of plain black coffee (no cream/sugar!) down the drain, let it marinate for 20 minutes, then flush with hot water. Your bathroom will smell like a café instead of a locker room.
Weekly treatments keep odors at bay, but skip the grounds—they'll clog pipes faster than you can say “espresso.”
Pro tip: Use cold coffee from your morning pot—no reheating needed.
Bonus: Coffee's mild acidity won't corrode pipes like harsh cleaners. Just don't expect it to unclog hairballs… this hack's strictly for stink emergencies!
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