How long does it stay cold, and how long should it be in the freezer for maximum coolness?
1586046
I believe that the instructions said to put it in the freezer overnight. 15 minutes is about how long it will stay effectively cold. It is much better for moist heat. 75 seconds in the microwave for 30 minutes of moist heat.
1586047
Several hours in the freezer. I keep 2 in the freezer, so there's always one available for use. Stays cold 20 min.at lease. For heat, in my microwave, it takes 1 1 /2-2 min.
1586048
Just keep it in the freezer all the time and take it out when you need it. You'll be able to determine how cold you like it and how long the right temperature lasts for you.
1586049
I don't know about how long it stays cold. I only use it in the microwave. It will stay hot/warm about 45 minutes.
3036
Yes, it can be "frozen" which is more like chilled. The usage statement says to place it in the freezer for 2 hours.
1713406
I store mine in the freezer... I really don't know how much shelf life it has... I tend to use it up quickly...
2070179
It freezes at 31 degrees. A freezer is needed. It also requires the full amount of time to freeze. When you do, it works awesome!
163175
Depends on your time frame and ambient temperature. It is not better or worse that other similar coolers on the market. If you are serious about keeping stuff frozen for more than a few hours you are going to need to pack with dry ice or invest in a freezer that can run off a car battery. For my purposes it keeps milk and meat cold for several days but I change put the ice every 48-72 hrs depending on how hot it is.
2193019
Sorry, we never had enough left to try to freeze. I wouldn't put mine in the freezer. It will stay in the fridge about 20 days - so why would you want to freeze ?
533281
about 6 hours. I put the ice pack in the bottom, in the zipper part. It would stay cold longer it it was actually in with the food. I am not a huge fan of the compartment style.
490965
I am sure this will vary....but when fully thawed it takes ours about 2 hours to freeze.
1764887
Sorry I can't be more specific. I have it at my office which is kept at normal temp. The setting is at 70% on the way to max cold and it keeps beer very cold. I don't think it could freeze however even at max cold.
677714
I put it in the refrigerator when I first got it and it got very cold. I haven't put it in the refrigerator since. It really stays cold for me but if you like it really cold and get really hot at night, you can just put it in the refrigerator again. I have never needed to put it in the freezer but you can. I works SO GOOD!!! IT IS SO MUCH BETTER THAN THE CHILLOW OR ANY OTHERS ON THE MARKET. I HAVE TRIED THEM ALL! THIS ONE IS SOFT AND COMFORTABLE UNLIKE THE OTHERS.
296848
It gets cold very quickly, 20 minutes will do but it doesn't stay cold for very long. I've found the best time window is 2 hours in the freezer. I love this ice pack!
981896
At least six hours. I fill mine up about 1/4 put in the freezer when it gets frozen I put cold water over the frozen ice and it will stay cold 8 to 10 hours or longer. I love mine.
752884
Couple hours at most. It doesn't stay cold all that long, but its ability to wrap is awesome.
332637
I keep it in my fridge. When I use it I put it under a light comforter, otherwise it's too cold to come in direct contact with my body. It stays cool enough for an hour or two, depending on how hot my body is. I have Erythromelalgia and sometimes my body is extremely hot in the evenings.
1535374
It depends upon the outside temperature and the temperature of the water when you add the ice. The manufacturer says 18 hours and I have had it last that long in my air conditioned home. I have had it last 24+ hours in the fridge. But, in warmer settings, 6 -12 hours is more realistic. To maximize the time, start with a cool bottle (running cold water into it or even keeping it in the fridge). Then, use ice plus COLD water from the fridge (otherwise the warm water will melt the ice before the outside air gets a chance). Then, try to minimize time in direct sunlight. Using a room temperature bottle, plus cold water and only about 4 ice cubes, my bottle keeps at least some ice for the entire 10+ hours of my commute plus workday (desk work).
578889
I send lunch with our daughter, and there is an ice pack with it. When she gets home, it is not still frozen- or cold for that matter. I pack her lunch at 8:30, and she gets home at 4:00. I am sure it keeps until 12:00, which is all I really need. May I suggest a small Igloo cooler, instead? I can say that it is a great, sturdy product. Easy to clean- no smelly cracks that don't clean well. I am very happy with it, and it will last for years.
2246229
I put it in the freezer and nothing happened. It did not turn cold at all. I am very disappinted with this product.