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2. ULT freezer - Wikipedia

   en.wikipedia.org/wiki/ULT_freezer

   An ultra low temperature (ULT) freezer is a refrigerator that stores contents at −80 to −86 °C (−112 to −123 °F). [1] An ultra low temperature freezer is commonly referred to as a "minus 80 freezer" or a "negative 80 freezer", referring to the most common temperature standard. [ 2 ]

3. Is Your Freezer Set to the Right Temp? - AOL

   www.aol.com/freezer-set-temp-190019467.html

   The post Is Your Freezer Set to the Right Temp? appeared first on Reader's Digest. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

4. Auto-defrost - Wikipedia

   en.wikipedia.org/wiki/Auto-defrost

   The temperature of the freezer contents rises during the defrosting cycles, especially if there is a light load in the freezer. This can cause "freezer burn" on articles placed in the freezer, from partially defrosting, then re-freezing; On hot, humid days condensation will sometimes form around the refrigerator doors.

5. Cascade refrigeration - Wikipedia

   en.wikipedia.org/wiki/Cascade_refrigeration

   [6] [7] [8] Efficiency drops very rapidly as more stages are added but for very small heat loads down to near-cryogenic temperatures this can often be an effective solution due to being compact and low cost, such as in mid-range thermographic cameras. A two stage Peltier cooler can achieve around -30°C, -75°C with three stages, -85°C with ...

6. Ice pack - Wikipedia

   en.wikipedia.org/wiki/Ice_pack

   They can be used as a normal reusable ice pack by storing in a freezer, but they can also be heated in water or a microwave oven to reach the desired temperature. The first hot and cold pack was introduced in 1948 with the name Hot-R-Cold-Pak and could be chilled in a refrigerator or heated in hot water. [ 3 ]

7. Individual quick freezing - Wikipedia

   en.wikipedia.org/wiki/Individual_Quick_Freezing

   Cryogenic IQF freezers immerse the product in liquid nitrogen at very low temperatures, freezing it rapidly while continuously moving the product to avoid block or lump formation. [5] Although this method shows good freezing results, it might lead to higher processing costs per weight of product due to the cost of the liquid nitrogen required.