I understand cold will last about 20-30 minutes. So if I had a cooler with ice how long to get it cold again?
1143678
You will need something colder than just ice. The idea is to "freeze" it. Something that cannot be achieved with just a cooler with ice. After taking it out of the freezer it will last 30~40 min.
1143679
As Mohammad says, have two of them. I kept them in my freezer and carried both to the clinic in a cooler. On the way to the clinic, I picked up some dry ice at the store and packed it around the caps. I rotated them back into the dry ice every 30 minutes or so during the chemo session. I know one person who rotated three of them, but two worked fine for me. I had lost quite a bit of hair during four months of chemo, and after I began using the caps during chemo sessions my hair started growing back.
1143680
I had 5 caps in rotation. We numbered them with a Sharpie, so we started with cap #1 and went sequentially through the caps to #5. By the time I was done with #5, #1 would be ready to go again. I would say about an hour and a half... Oh yeah, and it can't just be ice. You need dry ice and your helper needs to wear ski gloves to handle the caps. They get quite stiff and have to be very cold to work. Best wishes.
1544881
indefinitely I believe. It doesn't take long to get them cold and they seem to stay cold/cool for at least an hour. I purchased two, so one is always ready.
296851
Seems like about 30 minutes and it is pretty cold again. To really get it frozen more like a couple hours
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.
1587220
It depends on how cold your items are. (Semi-frozen,etc). It will hold the temperature for awhile, depending on where u keep it. (Freezer, fridge, or on your desk). I keep mine in the freezer at work and will remove it about 2 hrs before I leave. My juice stays cold till I get home.
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.
1451478
When filled, the water in the tank can last 8 hours (I've had it last longer somehow), but the ice pack will only last maybe 2 hours in warm water. So you will get 2 hours of cold water (extra cold air) and 6 hours of room temp water (cool air).
805130
I leave ice in it for a couple hours...but it isn't very frozen when I dump it into my freezer. It often clumps together Once dumped in my freezer due to it having started melting. Also if I use the ice straight out of the bucket it melts fairly quickly if its been in the bucket for a couple hours. If you dump it quickly the ice is fine. I don't think you could leave the ice all day and expect it to still be chilled. A few hours at max.
601247
We did put it in a cooler filled with ice until we got to the bee yard. The temp was 90 degrees and they didn't last but about 1 hour and 20 min. We put them back in the cooler and when we got to the next yard it was cool nothing more and did not keep us cool at all.
1372720
10-20 minutes. With the compression it'll feel colder than it really is. Put a thin towel like a washcloth on your leg so that the ice pack isn't directly on your skin your first time to determine your tolerance.
651220
It depends on the outside temperature. I would guess around 2 hours before the ice melts. It doesn't stay cold much longer than does an ordinary bottle. I usually encase it in an insulated carrier with a shoulder strap so I don't have to carry it in my hands. Once I dropped a bottle and it cracked. Mainly I buy these types of bottles because of the screw on/off feature so that I can fill it with ice easily.
1167840
I think it depends on the number of ice packs you use. Typically you should get about 5 to 8 hrs.
1389279
Haven't tried warm yet but it will keep cool with two to three small blue ice coolers. Six hours
1641414
I can't answer about a chart and I'm commenting as a buyer/user, It is the best for keeping my cold drinks cold with ice lasting for sure all day and well into the nite if the cap is in place, the screw in cap. I'd say 15 to 18 hrs, I've never actually timed it. The ice is the ice from my freezer. I take it to work so I'm in a temp regulated building. Last way less time if I leave it in a hot car on a hot day. I have no idea about a hot beverage, did not try it.
730221
I keep them in my freezer. They usually stay cold for two days in a cooler. I also using them when I need to put ice on my knee or on my back.
1148581
put ice packs in mine. it is cold 9 to 10 hours later. If you preheat the thermos it will go just about 24 hours
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.