Instructables

Forever And Ever Ice Pack

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This easy ice pack will last forever....and ever.
Okay- not forever, but 10+ hours for sure with no protection from the elements.

Sure, you can use them in a cooler for easy cooling without costly bags of ice that only last for a few hours with a few easy steps and a couple of bucks.
We use it for transporting meat and to cool meat rabbits and farm animals during the summer months.
 
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Step 1: Gather Your Supplies

Picture of Gather Your Supplies
We used:
* 3" PVC but any size will do depending on your cooking needs. I got a 12' piece though I only needed to make 7 of them. Too bad I forgot to take a picture before I cut them into 10" pieces.
* 2 end caps (of corresponding pipe size for each ice pack
* PVC glue
*This saw
* Good 'ol H20.

Step 2: Just Kidding

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This is the saw I really used.

Step 3: Make Sticky

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We used an "all purpose" PVC glue, though there are many options. Slather the inside of the cap and slide that bad boy in there.

You might wanna do this outside. It's pretty stinky.

Step 4: Wait...

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We let it dry for about an hour even though it seems to dry with superpower speed.

Step 5: Fill 'er Up.

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Fill 80% with water (because it will expand when it freezes and you don't wanna ruin all that hard work.
We also added a tiny bit of apple cider vinegar (you could use bleach) just for good measure so the water doesn't get too yucky inside.
We know... If its water tight we will never know how gross it is, but we didn't want to take any chances. This part is not necessary:)

Step 6: Lather, Rinse, Repeat Steps 3 And 4

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Slather up the other cap and let sit for about an hour before going in the freezer. The moisture in the freezer (as well as the temp) will cause a poor seal of frozen before dried.

Step 7: FREEZE!

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Ours go in the deep freezer overnight, but whatever freezer you use make sure it is frozen solid. If you hear any sloshing around in there. It is NOT frozen and will not cool to full potential.
fakum1229 days ago

You could also add salt to the water. That will lower the freezing point, increaseing the cooling capacity of the unit. :-)

kreator1 month ago

Just wondering, but would it be any different if you just froze some water bottles

ned103 kreator29 days ago

I think the main difference is that, when the PVC packs thaw, you don't have a cool refreshing clear drink. LoL I've used water bottles for years as freezer packs in my cooler. I've actually had them stay mostly frozen even after 3 days. But that all depends on how often you open the cooler. I've also frozen Gatorade and other flavored, non-carbonated, drinks. I'm going to make some of these PVC ones though, and use a combination of both the water bottles and these.

jnunnamaker1 month ago
Thank you Annie!
AnnieMcD1 month ago
Ingenious! I actually liked your first saw, reminded me of my granddads farm. Sounds like a good idea for hot sleepless Australian summer nights. Think I'll be making a few for the family.
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