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Ships free with Plus
Regularly: $6.79/Each
  • Maintains hot or cold temperatures for several hours
  • Lays flat inside a carrier; great for caterers
  • Can be easily heated in the microwave and cooled in the freezer
  • Reuseable product made with non-toxic ingredients
  • Durable FDA approved outer film withstands pressure

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You May Also Need

"You May Also Need" items are guaranteed to work with the item you are viewing, such as lids that will fit a cup or casters that will fit a piece of equipment. If an item is not listed in this section, we do not guarantee that it will work with the product you are viewing and do not recommend that you purchase them for use together.

Length 12 Inches
Width 8 Inches
Height 1 Inches
Capacity 40 oz.
Color White
Features Non-Toxic
Freezer Safe Yes
Microwavable Yes
Shape Rectangle
Style Pliable
Type Hot or Cold Packs

Customer questions about this product

When using as a hot pack, how long can this be safely heated in the microwave?
To start, we recommend heating this for 2 1/2 minutes. If you find that this is still not hot enough for your use, return it to the microwave for 30 more seconds. In total, this pack should not be heated for more than 3 minutes.
Ask your own question!


A must-have accessory for your insulated food pan carriers, this Microcore heavy-duty thermal hot or cold pack is convenient and easy to use. This pack will maintain temperatures of cold foods, or it can help hot foods stay hot! Simply microwave this pack before hot use, or toss it in the refrigerator or freezer before cold use.

This pack lays flat in carriers and has a durable FDA approved outer film that can withstand over one ton of pressure as you transport foods to your catered event. You can rest assured that your foods will stay hot or cold during the event, as this pack distributes temperature evenly and maintains temperature for several hours. It's filled with a non-toxic liquid that is safer to use than gel and much easier and cleaner than ice. Place this versatile pack in containers and insulated bags during transport, and it's great for restaurants, caterers, pizza shops, and delivery services! This versatile hot and cold pack is also a great addition to any first aid kit as it can be heated or cooled to help treat a variety of injuries.

Overall Dimensions:
Length: 12"
Width: 8"
Height: 1"
Capacity: 40 oz.

  • Microwave Safe

    Microwave Safe

    This item can safely be used in the microwave for food service applications.

  • Freezer Safe

    Freezer Safe

    This item can withstand low temperature applications and is safe for freezer storage.

Customer Reviews

  • Overall User Rating: Microcore 8" x 12" x 1" Heavy-Duty Thermal Hot or Cold Pack - 40 oz.

    4.7 stars from 40 reviews


    People Talk About:

    hot cold food great packs pack heat hours warm catering
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    See All 40 Reviews
    1 out of 1 found this review helpful
    I use these for a school lunch catering company. Initially these worked great, they hold the heat very well. However, over past six months, I have had to continually order more because they develop leaks. I am hoping to find a brand that will last longer.
    Thank you for the review, Donna. We are sorry these hot / cold packs have been leaking for you. We would like to address this issue. A Customer Solutions Representative will contact you shortly.
    We use for our pies when we are at farmers markets selling. They keep pies chilled for the 4 hours we are in heat. Great value
    I purchased 2, to be used for hot and cold. 1 for hot and 1 for cold. Used them at the same time. KEPT MY FOOD WARM and KEPT MY DRINKS AND SALSA COLD. Very fast to heat up and stats hot for a long time. Gets cold in minutes and both are flexible. I had to look up for instructions, does not come with any.
    We were using this pack for keeping our hot box warm while loading it up with our food. It works okay. Have not used it as a cold pack but have no doubt it would work great.
    When frozen it stays cold for days and when boiled in water it stays hot for hours. Very easy to clean if they ever get dirty.
    This has saved the day numerous times. best part it can replace ice in coolers which makes clean ups much easier, since not having to dump anything out. TO heat i prefer the boiling water method, gets it very hot.
    An absolute must hot and cold solution to delivery bags. They microwave in 3 minutes or can be left in the freezer for when needed. They wash and sanitize easily. Great product here.
    These are great! I got six of them to help keep food cold in a cooler during a trade show. They lasted the entire day even with me constantly opening the cooler. I haven't tried it hot yet, but I expect it to work just fine based on the quality.
    I got these to go with my portable food warmer carrying cases. They are the perfect size to keep foods warm during transport, but they serve double duty since you can freeze them and use them as cold packs too. That’s means less things I have to store in my kitchen.
    This reusable pack is absolutely fantastic. Be careful not to overheat, and always use a paper towel between the pack abd your skin but this prodyct is a winner!
    This is a very good quality hot and cold pack for the price. I have a carrier that I used to take food to potluck dinners. This works very well
    this is a very big thermal hot/cold pack. it's great for anything. i use it mostly as a cold pack in a cooler, but it would work just as well to keep food warm while you transport it. even for first aid if you're in a pinch
    We use these as ice packs and they have been a great addition to our delivery company. We have not tried them as hot packs yet but are confident they will be just as effective.
    The product works good but we had a few problems. When we received our order there were no instructions on how long to warm it. The product itself said do not over warm but nothing to say how long that was. So out of the threevwe ordered, one split...guess we over warmed. Out of the two we have left, they do what they say and keep food warm in delivery bags. We will probably order morejust going to see how long the last two go before they split and leak.
    This is an excellent product! Great in keeping foods hot & cold in the delivery process. Highly recommended! Webstaurant has just about everything you need!
    These packs have been amazing! We needed a way to create a pizza warming station without running electricity. We heated up a dozen packs and placed them under inverted sheet pans. The pizzas on top stayed warm and safe. We changed them out about every 30 minutes to make sure they pizzas stayed hot, but we couldn't have done it without these packs. Now they're getting daily use on our food truck to keep sodas fridge cold. 2-3 packs with a little cool/cold water to transfer the cold and room temperature sodas are drinkable in 20 minutes or less. We're saving considerably per day on ice.
    We use those for catering and they hold temperature well. Either cold or hot and used in a cooler or cambro they last for hours. After a long day of catering they are still half frozen.
    The Thermal Hold and cold pack did a great job. We use them to keep our hot food hot when transporting food for our catering events. Will order again.
    This hot/cold pack is a little smaller than a 1/2 pan lid (for size reference) and keeps product remarkably cold for a very long time. I'm quite pleased with these. Great for catering.
    The Thermal Hold and cold pack did a great job. We use them to keep our hot food hot when transporting food for our catering events. Will order again.

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