The method is surprisingly simple. All you need to do is:
Place a piece of absorbent paper (e.g. a paper towel) over the sink’s drain opening.
Invert a glass (glass or sturdy plastic) over the paper, covering the drain completely.
This forms a physical barrier that limits the rise of stale air, small particles, gases, and even insects from coming up through the pipes.
According to Loïc, a plumber with 18 years of experience in the Landes region of France:
“Before leaving, I always recommend my clients clean their sink thoroughly, treat the drains with hot white vinegar, and cover everything with a simple glass turned upside down on a sheet of paper. This prevents 80% of the post-vacation issues I see each summer.”
Pre-Vacation Ritual: How to Seal the Sink Properly
Follow this quick process to leave your sink clean, dry, and protected:
Clean the sink, especially around the drain and walls.
Pour 2–3 liters of hot or boiling white vinegar down the drain. This disinfects and breaks down any residue.
Let it sit for several hours or overnight, blocking the drain with a stopper or cloth if possible.
Rinse with hot water the next day.
Rub half a lemon over the drain to neutralize odors and leave a fresh scent.
Dry the sink thoroughly.
Place a paper towel over the drain opening.
Cover it with an upside-down glass, ensuring it fits snugly and seals off the opening.
Done! In just a few minutes, you’ve protected your kitchen from common vacation-related issues.
Why Not Just Use the Sink Stopper?
