Pyrex Ice Pack - Large Cold/Hot Pack - Original Genuine Pyrex (2-Pack)

My pyrex carrying case is 23 years old! It still works, but the original hot/cold packs have lost their vitality. I purchased these as replacements, and they work great. In addition to keeping hot casseroles and baked mac and cheese warm while transporting to family dinners, I use the hot packs to keep my soups warm when I carry lunch to work. I don't typically use the cold pack, but I imagine they'd work good when frozen, too.

My old Pyrex packs were no longer heating well (extremely thin after heavy use over the years). These are thicker and shorter than the old ones but still heat well and fit under my 9x13 in the carry case without any issues. I have yet to freeze them.

I've been sending my kid to school with homemade versions of the school hot lunches. This has been an absolute God send! I heat the hot pack in the microwave for 2:50 mins, then another 15 or so until it puffs up, remove with oven mitts, and put it in his insulated lunchbox right under his stainless steel bento box (we have the "LunchBots" brand). I was worried it would be too big, but it's not, it scrunches in there perfectly. I cover the hot pack with a paper towel because it's ugly... but boy does it stay hot! I put some leftovers in there yesterday and he said it was like eating straight from the restaurant, perfectly warm. HIGHLY recommend!! My only concern is how durable they are for everyday use - because should this thing ever burst open while I'm taking it out of the microwave, I could get burned pretty badly. Curious how long they have lasted for others?? So far so good, but it's only been about a month. It gets used 5x/week. I guess I should be alternating since it came in a 2 pack... maybe that way they don't get stressed to the point of breaking as fast... but anyway, hopefully it never will break!

I bought these as a replacement for some that came with my Pyrex Portables (the hot pack exploded in the microwave). I've used it only once and it did a great job keeping my dish hot on a 2-hour drive (of course, it was hot from the oven, as well). I hope it will hold up for many uses. I thought it was a good value and I like that I can either heat it up OR freeze it -- I don't have to use it for one OR the other, the way I had to with my old packs.

I couldn't be happier with the Amazon recommendation to pair this Pyrex Large Hot/Cold pack with my Pyrex casserole dish. It's proven to be invaluable during potlucks. On numerous occasions, it has maintained the temperature of my dishes, whether hot or cold. Although I quickly learned that for optimal freezing, they need to be placed singularly and flat, once I followed this advice, the results were exceptional. When used with my Pyrex casserole dish and a non-Pyrex travel container, the combination kept my dish warm for four hours before serving. Conveniently, I store them alongside the travel container in a kitchen cabinet, ready for their next use. And I’m amazed it took me all these years to realize how indispensable they are.

Purchased to replace an old hot pack that finally ruptured after 5 years. Have used several times and found that the package holds heat for several hours keeping items hot. Have not used as an ice pack as I already have other cold packs for that.

It was great getting a 2 pack of these hot/cold packs. It was nice being able to purchase these packs instead of buying a whole new carrier!!

I use a couple of these in an insulated bag once every week or two to keep my takeout food warm on the journey home. This is my second set. The first set lasted 5 years.