Question 1

Will your typical freezer get cold enough to freeze these? No thermometer on my freezer..

Accepted Answer

In my deep freezer they freeze solid, but in my refrigerator freezer it does not. I don’t think my refrigerator freezer gets cold enough.

Question 2

I’ve had these in the freezer for a week at 0*. They are still not frozen. Just what temperature are they going to freeze at?

Accepted Answer

Temperature is not measured by state (liquid or solid) because different solutions have different freezing temperatures.  Pure water freezes at 32 degrees F or 0 degrees Celsius.  The solution in the freezer blocks freezes well below that.  I stored them outdoors a few years ago to see if I could get them SOLID in MN winter weather.  
   Get an "instant read" thermometer.  Freeze 3 freezer blocks in the same level of your freezer for 48 hours. 
  Put one of these permanent freezer blocks in a quart of tap water, another in a solution of salt water (1 qt water and 1/4 cup salt) and a third in 1 qt. Water and 1/2 c sugar. 
   How long does your block take to freeze your solutions?
   Tip:. Cold mooves down;. If you store yours in the top of your freezer, it will protect your food during a power outage or freezer malfunction.

Question 3

Which color is comparable to the Yeti ice?

Accepted Answer

I'm not as familiar with the Yeti product, however if it helps, I use 2 of the purple Tundra packs in my cooler and they work awesome for me. Things in direct contact with them will freeze, but they make my sports beverages ice cold, even in a fairly large cooler. They work well enough that I no longer make a stop and buy ice, unless I have to keep food cold for a weekend.

Question 4

How long will it last for? This will be for medical supplies so please be as accurate as possible

Accepted Answer

Not long enough. I bought 2 of these in preparation for Hurricane season. I tried them out and they do not last more than three hours. I put them in the cooler with a couple of the same size from Walmart.  Walmart lasted longer. I was really surprised since they advertised they were long lasting.

ASIN	B00H50YTF0
Additional Features	Portable
Best Sellers Rank	#5,835 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #92 in Camping Coolers
Brand Name	Arctic Ice
Capacity	2.5 Pounds
Chamber Depth	7.5 Inches
Color	Purple
Container Type	Box
Customer Reviews	4.1 4.1 out of 5 stars (921)
Global Trade Identification Number	00836623012058
Included Components	Artic Ice Tundra Series Large 2.5 lb ice pack
Insulation Material Type	HDPE
Item Dimensions D x W x H	1.25"D x 7.5"W x 9.5"H
Item Type Name	Arctic Ice 2.5LB TUNDRA SERIES -15
Item Weight	2.4 Pounds
Manufacturer	Arctic Ice
Manufacturer Part Number	1205
Material Type	High Density Polyethylene (HDPE)
Model Name	Arctic Ice Tundra Series
Model Number	1205
Pattern	Purple
Recommended Uses For Product	Fishing
Size	Large 2.5 lbs
UPC	836623012058
Unit Count	1.0 Count
Warranty Description	manufacturer warranty

Tundra Series Long Lasting Reusable Ice Pack - 5° Fahrenheit Cooling Point - Designed to Maintain Freezer-Like Temperatures in Coolers

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