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

  • Price: $7.64/ea
  • BULK DISCOUNT - Buy 10 or more $7.07/ea
  • Shipping Info: Stock item, same day shipping M-F
  • Quantity:

Product Details


  • 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

  • Width: 7”
  • Length: 5”


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

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 2 Stars



  • 1 Stars



Reviewed by 3 customers

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Displaying reviews 1-3

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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!

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          Do you have questions about this product?

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

          2 Questions | 3 Answers
          Displaying questions 1-2
          • Q:

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

            2 answers

            • A:

              4-6 hours

              Answered on 3/29/2012 by Anonymous
            • 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
          • 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 1-2

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