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Super Cold Long Lasting Cooler DIY Bait Cooler Ice Packs - Formula
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- เผยแพร่เมื่อ 4 ส.ค. 2019
- Here's a formula for some of the coldest Bait cooler ice packs you can make for your cooler. They are sub freezing (13 F in tests) and stay below freezing for up to 24 hours! I initially started the experimentation to find something that would keep my bait cold as long as possible. Seeing the results, I am comfortable saying that you could use these for picnics, drinks, whatever you need to keep super cold for long periods of time! One last note, make sure your freezer is as cold as possible. The ice packs will only get as cold as your freezer can get them.
Here are some affiliate links to materials I used in this project:
Hydrophilic Gel: amzn.to/3xs149G
Bag Sealer: amzn.to/2PJJQvS
8"x8" Mylar bags: amzn.to/2PIQfHF
4.7"x7" Mylar bags amzn.to/2rgFBOR
You can read the full article here:
extremediy.org...
Super Interesting. Thank you for your hard work on this - it saves me a TON of time figuring this out. Really appreciate this.
Thanks Jim, Sometimes I take on some oddball projects this one took a while but was fun to do!
@@ExtremeDIYGuy How did the ice Mylar bags last over time? Did they stand up to the wear and tear? Anything you would do different today? One last question if you dont mind.....where does one get the Hydrophilic Polymer Crystals ?
@@jimjones7821 I went ahead and put links to the actual materials I used here in the description, all of it from Amazon, where else lol. The gel link is amzn.to/34MlIgr . So far, the mylar bags are holding up pretty well. It's not been a year yet so time will tell. BTW, the links are affiliate links. Thanks!
@@ExtremeDIYGuy Thanks and cheers !
Last summer I kept 1L bottles of water in the freezer. I would put those in a cooler the night before too pre-chill them before going camping that weekend. I have been looking forward to taking that a step further this year and your video was right on the money. Thank you. 🍻🤘
Glad you enjoyed the video and it could be of help to you!
Thank you for spending your time instead of my time. I wasted a lot of time before ending up here nice to find this video
Glad I could help
Very nice work, especially in collecting and presenting the data so professionally.
Thank you very much!
Thank you for taking the time to do these experiments! Ive made a DIY AC unit with 2 tranmission coolers attached to the back of a fan with a water pump that pumps water from a food cooler into the transmission coolers and it works great... until the ice in the cooler runs out. Might have to give this a try!
That sounds like you should do a video on it!
@@ExtremeDIYGuy Ah the AC design itself wasnt my idea, I actually followed a video by desertsun02, you can check it out here! - th-cam.com/video/Jfc26AH0jLI/w-d-xo.html
Absolutely excellent video that I’m grateful to somehow stumbled upon. I can’t overstate how impressed and thankful for you doing all of this research and tests. Thank you!! Cannot wait to check out what your channel is all about! Confident there’ll be many more amazing DIYs, tutorials, etc videos that I’d love to check out.
Thank you again,
❤ from Shannon in Canada 🇨🇦
Glad you enjoyed it!
Thank you for sharing your knowledge. I already tested your formula. It's work very well. Thanks
Thanks for the positive feedback! I appreciate it!
You are amazing!! Thank you so much for all your hard work!! I have four children in rigorous sports and they are always getting injured. Much appreciation!
Thanks Lindy!
These don't look like they're meant for injuries. They look like they freeze solid. Physical therapists recommend 3 parts water to 1 part alcohol for flexible ice packs. I make them for my migraines and they're great!
I just started my gelato cart business and dry ice is my only option since I don't have access to electricity. You're results look great I'm going to make some of my own and see how it holds up, thank you.
Best of luck!
AWESOME presentation with great explanation. All that matters for me is what stayed cold the longest with the understanding that variables such as brand of cooler, size and how much is packed inside are all variables that it would take 2 hours to discuss. For me this was just enough to make an informed decision. Keep up the great work!
I'm glad you liked the video!
Nicely done video. Like your thorough data driven approach, love that your bookmarks cut right to the core ;>
Glad you liked it! Thanks!
Love your approach! I was watching some ice pack vids and was frustrated by the huge differences in ratios used, and why nobody showed results. Then I found your vid. Answered all my questions and more. I will be making these. Thanks for your hard work and attention to detail. 💖
Glad it was helpful and that you enjoyed the video!
Best DIY Ice pack tutorial!!!! As ang Angler I appreciate your testing and sharing.
Thanks glad you enjoyed it!
Wow!! 🙌 thank you so much for all your time and research!! Invaluable!! Have you ever tried cotton? Sawdust? Or paper shreds? Thank you for your vid incredible!!!
Thank you, no, I have not tried any of those materials. Intriguing though,
Thx & excellent. I guess I’ll be re-filling my saltwater bottles with this mixture!
Terima kasih atas ilmunya. Sangat bermanfaat untuk proyek tugas saya di bidang pendidikan kimia. Salam dari Indonesia 🇮🇩 👍🏻
Thanks, I think.
Ty very much! I need to make lasting cold packs for my chemotherapy and I’m excited this may work. Other things last 10-15 min on my hands and feet and the infusion is over 2.5 hours
You're a very smart guy. It's a brilliant invention
Thanks !
Thank you so much
Your welcome!
Really enjoyed the video. Very informative. Thanks for taking the time to compile all of this info.
Glad it was helpful!
Great info thank you so much I’m such a noobie 😅I have learnt a lot from you
You are so welcome!
Thank you for sharing all your hard work with us. Much appreciated.
Your welcome glad to know my work is appreciated.
Thanks for this. Trying to make bags that last long enought to get me through chemo tx. Will give this a try.
Hope this will help!
Great work. Thanks for putting this together and sharing!
Thanks, I'm glad you found it useful!
Thanks from Egypt
Welcome, thanks for watching.
Hello Jose. Thanks for your valuable tests. I would try to do this at my end also. Thanks a Tonne.
Your welcome!
This is great! Exactly what i was looking for. I recently purchased a thermal rifle scope and need either a hot or cold, compared to the surrounding environment, small object to use as a target bulls-eye for sighting in the reticle, especially at an indoor range with uniform lighting and temperature. These should work great and, if made small, should not leave much hazardous debris on the range if actually hit. Thanks for effort you put into this!
Thanks for the feedback. I'm glad this was helpful to you. I'll have some firearms related vids in the future. Just don't have enough time to tackle everything I want to do lol
I very much appreciate your efforts at being scientifically rigorous.
Did you also keep track of the ambient temperature in the room? And other variables? Did you test each mixture once or did you average them over many trials?
The ambient temperature in the room varied between 70 and 72 degrees based on the thermostat settings for the house, I tested each mixture once.
Thanks for your research and great presentation.
I was wondering if adding salt water instead of Freshwater to the mix would make any difference?
It might, should bring the freezing temp down some but not sure how it would interact with other ingredients
Nicely done, sir!
Thank you!
@@ExtremeDIYGuy Jose - wondering if the final outcome froze rock solid or was moldable?
@@paincakes8038Out of freezer it was rock solid.
Thank you for mix, very informative, but the Links are not working anymore, what gel should i use? And how much i should add?
Can you use a doubled freezer Ziploc bag?
I don't see why not, not as strong though.
Two questions for you, my friend. One) can this be reheated in the microwave to help with heat? Two) I can't find any of those bags that you're using. So my question is could I freeze it in a deep freeze ziplock bag then once it's frozen I can transfer it to my vacuum sealer?
I don't see why you couldn't heat it in a microwave, I would just be careful to make sure there is enough room for expansion in whatever container you are using. I don't see an issue with putting a ziplock bag inside of a a vacuum sealable bag, unless I misunderstood what you meant.
Can you put up another link to the polymer, the current link doesn't work
Hi Jose. Great video, thanks. My question for you is, do you think this would work in a water jug/milk jug as a reuseable large ice pack? Is there any type of expansion with this mix when it freezes? I'm hoping to make a few that can be used daily without worrying about them bursting.
I think it should be fine but would leave some room for expansion.
Ever try sand it takes heat up low and cold slow and give back slow.
That's an interesting approach, sand has a lot of mass. The more mass you are dealing with, the slower that heat transfer occurs. If that holds true, a rock would work as well, a bean back with lead shot may work even better. I might have to play around with that!
Can this formula work for plastic tubes instead of plastic bags?
I see no reason why not, the bags were just a convenience,
so the formula is Proplylene Glycol 10% + 90% water + 1 teaspoon of hydro absorber right?
Correct, I used 50ml PG 450ml of water and a teaspoon of the Hydrophilic Polymer gel crystals.
That sounds like just a little too much to fill a half liter bottle with enough room for expansion of the water when it freezes. Adjust according, I guess.
thanks for sharing
My pleasure!
Very very useful, thanks
Glad it was helpful!
Thank you
Your welcome!
Could this formula be used inside pvc pipes?
Great data collection and comparisons. Thanks for the video!
Glad you enjoyed it!
Captain Morgan Rum was used?
I cant remember because I drank it all. But I'm pretty sure I used Bacardi.
How long do they larger packs last/stay cold.
Most I've used them is 24 hours they do fine.
That was a great piece of work! thank you. If the application was more for sports injury, where a little bit more pliability of the frozen pack was preferred, could you recommend how you would approach adjusting the reagent mix?
Thanks again.
I would probably add alcohol to the mix. It would take some experimenting though. I think with enough alcohol it would slush up rather than freeze. Although salt may do the same as well.
@@ExtremeDIYGuy thank you very much for the guidance. I will give it a go!
If the ice pack is TOO cold it could cause frostbite if placed in direct contact with skin. Be careful!
@@Dick_Gozinya Yes - good advice. Always have a slightly damp tea towl or similar between ice-pack and skin to prevent further injury when treating with R.I.C.E.
Did you happen to come up with a new formula?
in your final mix section I did not see you add the rum?
Wait, I'm seeing that plain water is the best. Does it really matter how cold something got initially? Also if frozen in a freezer of set temperature, all of them will start at thar same temperature. Pure water may freeze at 32 degrees but frozen pure water will continue to go down in temperature to absolute zero like any other mixture.
What your graphs are showing is that the mixtures transfer the heat in the cooler to themselves more quickly, while the pure water holds the temperature more consistent and because it initially doesn't transfer so much, that keeps the cooler more efficient in the long run.
Looks like I'll just stick to pure water. Then the secondary benefit is you have drinking water available. If you were saltwater fishing and had a problem, now you have more water for survival.
Good points, thats why I graphed my results. You can tailor the mix for your particular situation. I like the survival aspect too!
Do you have an alternative to absorbent polymers? They are quite expensive as i need to create alot of super cold ice packs to ship frozen cakes. Or can I use those kids play water beads? THey are the same thing?
You might want to try the propylene Glycol mixture. It held the cold pretty well.
@@ExtremeDIYGuy Thank you! I tested out water and gelatin powder and that holds the cold pretty well as well, I will need to buy the PG somewhere and add that.... :)
I noticed some people make 2 inch diameter sealed pvc "polar bear tubes" with water or salt water inside. Any thoughts on how well your mixture would do in that container, and thoughts on leaving room for expansion? For water they only fill the pipes 75% to 80%.
I don't see why that wouldn't work. 80% sounds like a good target to leave room for expansion.
How did these tubes turn out? About to make the same thing.
nice video. thank you so much.
Thank you!
I’m using this to make gloves for a friend who works with chemicals. He doesn’t like his hands getting sweaty in gloves so I’m making a self cooling chemical gloves
That sounds like an interesting project! Would love to see the results.
Thanks, this is what i looking for.
Is it safe if mix more than 2 item?
I think water + HP is the base mix and then if put another items like salt + alkohol + PG.
I just wonder if that mix can made more cooler ice pack than i can make manual ice cream usually use ice + salt for the cooler agent.
IT's worth a try. I don't believe any of the components are reactive with each other. I tried a few different mixes but this one seemed to work best.
I'm going to add salt water to large incontinence pads, two or three maybe and seal them then freeze them for my hot doggo. Normally I hose her down and let her air cool on my tricycle (its covered for shade & we go about 30K\hr plus she has a fan for when we stop). The neighbors call her Queen B*ˆch.
But she earns her keep. If ANYONE, and I mean ANYONE stands near the trike, she's ok but if you eyeball her or reach towards the bike as if you're going to touch it,, she will growl & let out one warning bark. She won't savage anyone. She's a nice lady. But nobody pushes her around. Not even me.
I actually just sent an email as well.
This is a very very lovely video especially your scientific methods and approach. In third world countries you will be shocked how far simple solutions like this will help rural areas. Especially primary health care clinics rural areas in west africa.
From your conclusion propylene glycol and Hydrophilic Polymers was a perfect conclusion. However whilst propylene glycol is more readily available, Hydrophilic Polymers is not a readily available compound having researched thoroughly from most chemists or even agro alliend supply stores around. Here is my question and humble request, Can you run a parallel test with cotton wool with propylene glycol, if available shredded and densely packed polyester fabric with propylene glycol, and wood sawdust or paper pulp (pycrete) with propylene glycol. It will be very interesting how this compares with propylene glycol and Hydrophilic Polymers in terms of lowest temperature and logenvity before it gets to 20 degrees C. Your help will be most appreciated as easy access same test apparatus to carry same test conditions is not available.
Maybe you can do a part 2 video too or simply share your findings.
Much appreciated
One thing I notice is that your plain water ice starts much warmer in the graph at 3:44. So freezing overnight this makes sense. I just wonder what the results would be if the plain water ice was given a week in a deep freezer to get closer to the same temperatures as the faster freezing salt and other solutions you tried. I have a small chest freezer that I can store some packs for my cooler until needed. Water being slower at releasing its energy could still be best if started at the same temperature as the colder packs.
Actually, you make a good point, I figured that after 24 hours it was as cold as it was going to get. Or that it warmed up to a starting temperature pretty quick. I may repeat the experiment with ice that has been in the freezer for a week or so.(Assuming the wife doesn't give me the stink eye) but wont record it, too busy with the Boston Whaler restoration which is taking up a TON of time lol.
@@ExtremeDIYGuy Nice! Boston Whalers are a great boat. I had a friend that had a smaller one 20 years ago, I think it was a 15 footer. Fun functional boats. As for the week ice test that is good idea! I'm going to try it eventually but I don't make videos so it will be just for my own knowledge and anyone that wants to believe me. I'm curious and most of the videos on this topic no one states longer time other than overnight or 24 hours. Ice will get colder I imagine it just takes longer once solid. What's also interesting is that pure water can be super cooled and remain water without turning to ice until disturbed. It has to be clean of impurities and most minerals. I've actually had that happen with some bottled water before. As soon as you take it out if the freezer and open it instantly crystallizes to ice. I wonder if super cooled water is the fastest way to the coldest ice pack with just water. I'm no expert, I've just seen that happen and wonder about the freezing point versus energy absorption.
If I want to make smaller versions, do I use the same formula and put the hp in the bottle mix it then put the soln in the smaller bags? Also, do you happen to have the formula to make it more slushyish.
Yes, just use the same formula and then add to smaller bags.. Sorry, I done have a formula to make it more slushy.
Your extensive work, then detailed data collection could have nearly been a Thesis topic.
Thanks!
What's the longest you can keep somthing cold before u would have to re freeze?
I get a days worth of use and they are usually still frozen.
what happen if Proplylene Glycol 50% + 90% water, is it will make very lasting cold? thanks
Did you mean a 50/50 mix? Because you can't make a 140% mix. In any event, I believe that adding any PG to water will make it colder. Here's a link to a graph that shoes a 15% PG mix which is definitely colder. i0.wp.com/extremediy.org/wp-content/uploads/2019/08/Results-2nd-Run.jpg?ssl=1 You can read the entire article here: extremediy.org/super-cold-long-lasting-cooler-diy-ice-packs/
Have you thought about making a dual layer bag? Gallon sized bag of pg then a quart sized bag of water dropped into the gallon bag.
That would be interesting to try, I think the water bag would draw heat away from the mix. What do you think?
How have these held up over time? Any changes? Do you combine these with ice or on their own? How do they hold up vs premade packs?
They are still in use for our cooler, we usually just use the packs unless we need it cooler for more than a day
@@ExtremeDIYGuy have you tried any new combinations like glycerin and vodka with the gel? Maybe stuffed in pvc tubes.
Can i use sodium polyacrylate instead of hypophilic polymer.
It's a super absorbent polymer so I suppose so. Worthy of trying it and reporting back what happens!
This is exactly what I was looking for. I saw your blog and glad you have a vid as well.
One question, why did you not opt for the less expensive miracle gro Water storage crystals? Do they they retain less water?
I'll be making some of these for my next backpacking /fishing trips. Thanks so much
Your welcome! Thanks for visiting the blog! Nothing that complicated, just found it easier to verify that the crystals I used are H. Polymers. I'm sure the Miracle Gro crystals will work just as well.
Amazing thk for share! did you try in 48/72 hours at what temperature was it?
No I did not, I found that after 24 hours there was very little "cold" left in the ice packs. WOuld be interesting if we could find a formula that stayed cold for 48 hours!
@@ExtremeDIYGuy thk!
@@ggmtddbo YW!
If you don’t mind me asking: they put salt on icy roads to lower the freezing temperature of ice and thus melt it. Why in the case of the ice packs it makes them last longer. Shouldn’t it do the same as in roads? Also here in Mexico when I was a kid, carts of ice cream would go by in the parks and plazas and the vendors used salt to keep the ice. How do we solve this apparent contradiction?
Salt mixed with water is endothermic. This is the term of the contradiction you've identified
Wonderful experiment. I appreciate your hard work. If we put your formula in empty clean Pepsi or coke bottle. The result will be the same as your Mylar bags or different. It can also keep 24 hour cooling temperature as you did. Please reply my question in detail .I will be waiting for your reply anxiously. Thank you .
I assume it won't be any different, the mylar bags were only a convenient way of sealing it up.
Thx. I’m going the bottle not bagged route. Do you have any sense what the expansion ratio from room temperature to frozen is for this mix? I want to leave the right amount of buffer air in the bottle so the bottle doesn’t bulge / split. I suppose it depends on the strength of the bottle too but I gotta start somewhere.
I really don't know. Perhaps you should our some into a cylinder that is not sealed and freeze it in an upright position and measure the volume before and after. Would be a good idea to see what the expansion is percentage wise.
@@ExtremeDIYGuy Thx. I’ve concluded that whatever the real number is if you’re smart you’ll leave more buffer than that. A couple hard-shell cooler packs I have suggest 80% gel, but I think 90% is ok if your container is strong enough. My experiment like that showed 5% expansion though there was probably measurement error.
Thanks for posting your findings! I'm sure others will find it helpful.
Can I use orbeez instead of cystals?
Not really sure its worth a try though.
Is there any alternative of hydropholic polymer. Amazon not available
The link in the description shows it as available, at least in the US.
I need a mixture that after freezing will be cold for 10 hours for more
I've had it last a full day in my case
How many days/hours will it stay frozen inside of a styrofoam cooler?
I have not done any tests that long so can't honestly give you an answer. Maybe someone that has tried this can chime in and answer?
0:45 Actually no, I'm not wondering about that, because you haven't shown me how cold they get or how long they last yet. Seriously though, thanks for the great info! I would like to know if this mixture could be used in a plastic bottle of some kind instead of the packet.
I don't see why it couldn't be put in plastic bottles. Altough I would mark them so they are clearly not soda 😀. Some folks put it in sealed pvc pipes
Sir , is it safe for food items? If packet leaks ! Regards:
Its non toxic but I would read the packaging and see what it says.
Nice
Thanks!
hey man love the hard work and giving us pin point information but I was wondering what if I would like to make these gel ice packs for outside heat, to cool the body down lets say factor warhouse gets about 100 degrees how long would these hold up in that type of hot environment ?
I never gave it a thought to use them to keep cool. I suppose it would work but I certainly wouldnt freeze them. Would probably chill them to 40-50 degress and then avoid direct skin contact. Might last a few hours at lease that way.
@@ExtremeDIYGuy a tad bit confused I ordered and bought everything you've said took a while online order but thier here.. you gave Ingredients of Water, Salt, PG, Alcohol rum, and water crystals in your video you only used 3 Ingredients out of the 5 Stated what happened to Salt and Alcohol (rum)
Where I get completely lost is you said
Consequently, the mixes i chose were the 10% propylene glycol and the 10% alcohol (rum) mixes. but in your final video there is no alcohol rum used just Water, PG and Polymer crystals ? thanks a ton Jose
@@Dameunchin Friend, I used all the components in the video to see which would work the best. The final mix is what stayed coldest for the longest period of time.
Is this reusable. And how much time i used it.
Yes, they are completely reusable. Just put them back in the freezer!
Where do you buy hydrophilic polymer that you are using?
Hi, I bought it on Amazon amzn.to/2ItGZTr
What bags did you use? Thanks !
In the description but here are links to them 8"x8" Mylar bags: amzn.to/2PIQfHF
4.7"x7" Mylar bags amzn.to/2rgFBOR
I'm really interested in this but was looking at the PVC pipe implementation I've seen in other videos. You probably haven't done this research but any idea on the % of volume increase of the mix because of the gel? I could surely blow apart a whole lotta pipe trying to figure it out :)
I haven't but have seen where others put similar mixes in pvc pipe without any issues. I would just stick with schedule 40 or better.
My question was more regarding the expansion of the gel. Most of the PVC tutorials say fill it 80% but with the gel I'm imagining the gel expanding to destroy a pipe. Or does the gel absorb the water while not really taking up any more space than the water did?
I'll have to get some, put it in an open top jug, and see what the water/PG level is and then check it after the gel has been added and totally absorbed...
@@bigzeromike The gel shouldn't take much more room when saturated than what the water did by itself.
@@bigzeromike It's like cooking rice. You put a cup of rice and 2 cups of water in the rice cooker, and the rice absorbs all the water, but the volume doesn't change, there's just now 3 cups of cooked rice. I would think it would work the same with the gel. Part of me wants to call you a moron, but if you've never cooked rice before, I guess I can understand your concern. Anyway, don't worry about it. You'll still have to leave room for the expansion of the water when it freezes, though, I would imagine.
@@Dick_Gozinya I appreciate you not actually calling me a moron. Yes, I've cooked rice before but never felt inclined to compare the water/rice level before cooking with the volume of space the cooked rice takes up.
How did you test the pack
In a cooler with a remote thermometer timed test with a gopro timelapse
hi, I am already try using 10% PG.
but the result was not good.
I put the temperature sensor not on the ice but on Styrofoam room.
may I ask, where you put the sensor to measure the temperature?
because I have experiment before, put sensor direct on ice make many eror can happen, like sensor position. so we counting unstable
I out the sensor in the cooler with the ice, but on the other side of the cooler making sure it was far enough not to touch the ice packs
why did you use mylar bags?
Because it can be easily heat sealed
@@ExtremeDIYGuy I was wondering if it was because of there metallic properties or that they reflected the heat back or something?
@@theotheq Nope, just easy to permanently seal
Hi thanks for posting this. Was wondering if you've ever encountered a bag bursting because of the weight of the fish/drinks etc. Or are the bags quite tough.
How does your formula compare to Cooler Shock packs? It claims up to 48 hours of cold temps!
I tested them against ice blanket cold cell packs but not against cooler shock so don't know. I'm pretty sure the cooler shock has a base of hydrophilic gel but am not sure if there are any other additives in their formula.
But the cost to buy these supplies is nuts!
respect
Thanks!