Arctic ICE Tundra Series, Long Lasting Reusable Ice Pack, Purple

Thank you so much, I use it for my kids lunch boxes and it keep the fruits fresh Also the lunch box stayed cooled until came back from school ( 8 hours) High recommend for all mums special in 49c hot weather like my country

I use this mostly for beer and drinks in a cooler that I bring to the beach and it works amazingly. Compared to your typical cooler packs built for -2C, it is designed to freeze at -15C meaning you need to make sure your freezer can go down to -17 at least, and keep it there for two to three days to get it to completely freeze. If I don't open up my cooler, the drinks closest will start to freeze. I would advise anyone with food not use this because it will actually freeze your vegetables, for example, tomatoes and cucumbers will actually freeze and not be pleasant. It's for transporting meats or drinks if you are like me and like your drinks super cold.

Tried this out on the recommendation of a friend.I have not been disappointed. As with all cooler applications, Pre-chilling both the cooler and the contents is paramount for optimal performance. While the Arctic-Ice literature states that you can use it to completely replace the need for standard ice, I have found that for beer cooler/tailgating type use this does not work well. That said, what it does do is virtually eliminate ice melt within the cooler up until the phase change has completely occurred. I put 2-4 2.5lb panels in my K2 20 quart, along with ice and beer, and in my 65 quart Yeti use 2-3 of the 5 lb panels, plus ice and beer. Without having some ice in the cooler, there is too much airspace, which gets filled with warm air each time you open the cooler. This causes the panels to change phase more quickly than desired, and the beer to be slightly warmer than optimal. By using a combination of ice and Chillin Brew panels, you can achieve good ice to beer contact, with a minimum of air space. This will give you very cold beer, and good solid ice for 1 1/2 - 2 days, even with getting in and out of the cooler constantly. This works very well for me, as we typically spend all weekend on the lake, and I virtually never have to add ice to the cooler throughout the weekend. Alternately, if you are looking to pack food for a vacation, camping trip, etc, there is no need for ice, as you won't be getting in and out of the cooler. For this application I really like the panels much better than ice, because you don't end up with a watery mess. One trick I like to do is to put any raw meet in the bottom of the cooler (in plastic bags of course), then put a Arctic Ice panel laying flat on top of it, and put my other fresh items in the top (Fresh items also in plastic bags for safety). If you do happen to end up with a slight leak, the panels are dishwasher safe, making cleanup a breeze. I don't typically try to transport frozen items that absolutely need to stay frozen, nor do I care if my fresh items such as carrots, celery, get a bit frosty. For this reason I find the Chillin' Brew version of the panels to be the only variety of Arctic-Ice that I need. That said, if you want to strictly handle frozen items, or refrigerator temp items, you may want to look at either the Tundra series or Alaskan series.

I've been using this for four months every Saturday and Sunday in a 30 quart Coleman cooler. I work a farmers market from 8am to 5pm in Texas summer heat both days. This keeps my water and whatever I need to keep ice cold, cold. Sometimes I'll throw in a small blue ice pack if I need to use that in another soft sided cooler for fresh veggies. Yesterday morning I had to run and pick up 2 gallons of milk from a farm (2 hour drive) and used the Arctic Ice pack. I forgot to put in the freezer last night and needed to run some errands and pick up some cold items today. It was still cold from yesterday morning and so I left it in the cooler and threw in a small blue ice pack. I left at 9:30 a.m. and it was 1:00 p.m. before I finally got to the store to shop. Even sitting in my hot car while running in and out of other stores, it was still cold enough to put frozen vegetables, ice cream and other refrigerated items in and keep them cold till I got home. The last couple weeks I've moved it to a Coleman Xtreme 70 quart cooler to keep my pastries cooler with our temps hitting 100. Considering I had to open and close it often to remove and replace the pastry containers out to serve customers or get my water, by the end of the day it was still cool inside and still kept my water bottles sitting next to it ice cold. There was no room for a blue ice pack to help out.

I bought three of these for a Lifetime 77 quart cooler (which is an insanely great cooler - way better than a Yeti!), hoping they would keep our food cold for at least 4 or 5 days of our 10 day camping trip. Well, they lasted 9 days before I had to buy ice!! I actually should have only used 2 of these in the cooler, though, because these are incredible! However, it's critically important to properly prepare your food and cooler -- pre-chill or freeze food & drinks ahead of time and pre-chill your cooler for at least a day or two (just throw a couple of bags of ice in your empty cooler). You need to properly pack your cooler, too - Youtube has videos on this. I put some frozen meat on the bottom and it stayed frozen right up until I had to put in ice. This sounds weird, but it was almost inconvenient because I had to remember to take out meat to thaw! I jammed in a container of sour cream nearer to the bottom, right next to one of the ice packs and it froze solid!! I had lunch meat that also froze solid - and it was on the top! Definitely should have just used 2 ice packs and put the third in my drink cooler. The key with these ice packs is to FOLLOW THE INSTRUCTIONS. They need to be put in a freezer that is at -5 degrees, which most kitchen fridge freezers can't get to or can't stay at consistently. These need to go into a deep freezer or they just won't freeze solid. And, these things don't freeze overnight - they need 2-3 days at least (I put them in for a week!). Definitely buying at least one more for me and will be buying these as Christmas gift for my kids that camp!

so far so good , it lasts very well , but does need 2 days in the freezer to reach max effect for me