Microcore - 110.90.03520 - 5 in x 7 in Microcore Hot/Cold Pack

SKU: 81492
Price: $7.64/ea
Shipping Info: Stock item, same day shipping M-F

5 in x 7 in Microcore Hot/Cold Pack Features

  • Easily heated in your microwave or cooled in your refrigerator or freezer
  • Re-usable
  • Safer than gel
  • Filled with non-toxic liquid
  • Microcore Hot/Cold packs distribute the heat or cold evenly
  • Can be placed in any type of container for continued heating or cooling
  • One year limited warranty
  • 3 years or 300 use lifespan
  • Maximum Heat time 1000 watt or less 3 min 45 sec
  • Maximum Heat time over 1000 watt 2 min 30 sec


by PowerReviews
5 in x 7 in Microcore Hot/Cold Pack

(based on 4 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 4 customers

Displaying reviews 1-4

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Very Disappointed

By Cosmo Bailey

from Knoxville, TN

Verified Reviewer



      Best Uses

      • Everyday

      Comments about 5 in x 7 in Microcore Hot/Cold Pack:

      Was very disappointed when I received two, put directly in the freezer before I found out that one had a hole in it and leaked in my freezer. Con not use has to be thrown out.


      Fabulous cold retention

      By kat

      from San Jose CA, USA and San Jose BCS Mexico


      • Durable
      • High Quality
      • sustains cold a very long time


        Best Uses

          Comments about 5 in x 7 in Microcore Hot/Cold Pack:

          We've ordered many of these packs over the years--very reliable and last forever--it's just that we end up giving them away to people who love them too--so have to reorder.

          Our only disappointment w/recent orders--
          In the past, even when they were frozen, they were soft and pliable--thus great as backup exercise cool packs.

          However, the latest version is absolutely solid when frozen--so we can only use them for use in our food coolers. And because they are so solid, they are not so easily "shifted" around the food.

          That said, we would never consider buying any other product for this use.

          Service and delivery comments:

          see above



          By Anonymous

          from Pembroke Pines, FL

          Comments about 5 in x 7 in Microcore Hot/Cold Pack:

          Works well to keep bread warm, I'm glad I ordered it.


          I would have preferred ...

          By 2-Bjoyful

          from Arkansas


          • High Quality


            Best Uses

              Comments about 5 in x 7 in Microcore Hot/Cold Pack:

              I would have preferred the Microcore pack to have included basic instructions--I had to call the 800 number on the pack.

              Service and delivery comments:

              but only if I could tell them how long to microwave it and which side should be up in the microwave. Good thing the 800 number was printed on the product!

              Displaying reviews 1-4

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              Do you have questions about this product?

              Get answers from real customers and in-house experts with AnswerBox.

              4 Questions | 8 Answers
              Displaying questions 1-4
              • Q:

                Does it come with a cover?
                Asked on 10/17/2017 by Peggy from Alexandria, Virginia

                4 answers

                • Staff Reviewer


                  This does not come with a cover.

                  Answered on 10/18/2017 by Steve from Boulder
                • A:

                  No, It did not come with a cover.
                  Sent from my iPad

                  Answered on 10/17/2017 by cleaningjoan from undisclosed
                • A:

                  No cover.  Comes as pictured.  Great product!
                  cover.  Comes as pictured.  Great product!
                  Please type your reply above this line -###
                  Can you answer Peggy's question about this
                  in x 7 in Microcore Hot/Cold Pack
                  "Does it come with
                  a cover?"
                  Reply to this email
                  you in advance if you are able to answer the question. Your email address
                  will not be shared with this customer or other shoppers. We may post your
                  answer to our site to benefit other shoppers. By replying to this email
                  you agree to the privacy
                  from answering questions about all products

                  Answered on 10/17/2017 by c.dancey from undisclosed
                • A:

                  No, it is a gel-pack, very durable and multi-use. Ours are used daily for meals-on-wheels and last for months.
                  Richard Anderson
                  Associate Division Director
                  Aging and Nutrition Services
                  2660 Larimer Street • Denver, CO 80205

                  Answered on 10/17/2017 by randerson from undisclosed
              • Q:

                How do you heat this item in a micro wave. What setting, how long?
                Asked on 8/15/2015 by Redman

                1 answer

                • A:

                  It can be heated on regular setting for 3 minutes and 45 seconds for microwaves with 1000 watts or less. For microwaves over 1000 watts 2 minutes and 30 seconds.

                  Answered on 8/15/2015 by Community Answer from None
              • Q:

                how long will this product keep food hot?
                Asked on 12/7/2011 by Anonymous

                2 answers

                • A:

                  This Microcore hot/cold pack will stay hot for about an hour or two depending on how well insulated the carrier is.

                  Answered on 12/9/2011 by Molly from Boulder, CO
                • A:

                  4-6 hours

                  Answered on 3/29/2012 by Anonymous
              • Q:

                How thick is this hot pack?
                Asked on 8/11/2011 by Anonymous

                1 answer

                • A:

                  This hot/cold pack is approximately 1" thick.

                  Answered on 8/12/2011 by Molly from Boulder, CO
              Displaying questions 1-4

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