How to Make a DIY Cold Pack With a Sponge: A Simple & Effective Idea

Have you ever needed a cold pack in a pinch? Maybe after a tough workout, a bump or bruise, or even, to throw into a lunch bag? Well, I’ve got the perfect, easy-peasy project for you!

Today, we’re making our very own DIY cold pack using just a few simple household items. This project is not only super practical but also incredibly fun to make.

So, let’s dive right in!

1. Prepare the Sponge

Start by soaking the sponge in water until it’s fully saturated. You want it nice and wet, but not dripping all over the place. Give it a gentle squeeze to remove any excess water.

Tip: Use a new, clean sponge to ensure your cold pack stays hygienic.

2. Add the Rubbing Alcohol

Next, pour a small amount of rubbing alcohol over the sponge. The alcohol will prevent the sponge from freezing completely solid, giving you a flexible, slushy cold pack.

I usually go for a 2:1 ratio of water to alcohol, but you can adjust based on your preference.

Safety Note: Handle rubbing alcohol with care and keep it away from children.

3. Seal the Sponge in a Ziplock Bag

Place the soaked sponge into a ziplock bag. Seal the bag tightly, making sure there’s no air trapped inside.

4. Freeze It

Pop the sealed bag into the freezer. Give it a few hours to freeze completely.

The alcohol will keep the sponge from becoming rock-hard, making it perfect for molding around any achy spots.

5. Use and Reuse

Once your cold pack is frozen, it’s ready to use! Apply it to any sore areas for instant relief.

Or stick it in a lunch bag to keep your food nice and cold.

When you’re done, just pop it back into the freezer for future use.

Optional: Cotton Ball Ice Packs

Make smaller travel ice packs using this same trick but swapping out the sponge for cotton balls

Because cotton balls are also super absorbent, they make for a great tool to hold rubbing alcohol.

Grab a few clean cotton balls and stuff them into a small Ziploc sandwich bag.

Pour in some rubbing alcohol (you can use less than I used in the picture above -- I got a little bit pour-happy) and make sure they're good and soaked.