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It turns into a squishy ice pack that molds to a knee or elbow. ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌
Genius House Hacks - Smart Ideas for a Simpler, Happier Home

October 231, 2026

Anisa

Hello Neighbor!

My great-nephew is at that age where he is into everything, bumping his knee on the coffee table more afternoons than not when he stays over.

I did not have a single ice pack in the freezer that would actually mold around a toddler's knee, so I grabbed a sandwich bag, filled it with water and a splash of rubbing alcohol, and tossed it in the freezer.

An hour later it came out cold but still squishy enough to wrap right around him. Below is how I do mine.

Be Well,
Anisa

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Genius House Hacks by GopherCentral.com

Photo: Anisa at her kitchen counter, sealing a sandwich bag filled with water and rubbing alcohol before setting it in the freezer.

Turn Rubbing Alcohol And Water Into A Squishy Ice Pack

A mix of water and rubbing alcohol never freezes completely solid, so it stays flexible enough to mold around a knee, elbow, or forehead instead of sitting stiff like a regular ice cube.

How To Do It

  1. Fill a sturdy sandwich or freezer bag about two thirds full with water.
  2. Add a splash of rubbing alcohol, about one part alcohol to three parts water.
  3. Seal the bag tightly, pressing out extra air, and double bag it if you are worried about leaks.
  4. Freeze for at least two hours, then wrap it in a thin towel before using.

More Ways To Use It

  • Keep a couple in the freezer for lunchboxes, they stay cold for hours without turning into a soggy mess.
  • A smaller, pouch sized version is perfect for a stiff neck or a sore back.

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ASK THE GENIUS

"Is it safe to use on a child's skin?"

Always wrap it in a thin towel or cloth first so the bag never touches skin directly, the same way you would with a store bought ice pack.

Got a question? Ask the Genius »

DID YOU KNOW?

Mixing rubbing alcohol into water lowers its freezing point, the same basic idea that keeps antifreeze from turning solid in a car's radiator.

That is exactly why a bag of it stays squishy in the freezer instead of turning into one solid block.

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