Pyrex Portables Large 11" x 7" Hot/Cold Pack - 2 Pack

These work great, surprised by how long they stay warm.

Keeps food warm and keeps food cool! Love this product when traveling with food. Well worth the money, no smell, and just the right size!

Works Great! Needed to keep food hot to take to funeral. Excellent choice - nice & large.

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.

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.

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 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.