YETI  Rambler Food Jar - 8 fl. oz.

I was worried that my Kodiak + 1 scoop of Optimum Nutrition vanilla. It’s does great. The lid is slightly deeper in the cup than I would prefer but it keeps warm. Use everyday when traveling. Buy it.

I purchased three Yeti Rambler insulated food jars (one 473ml and two 236ml) expecting reliable temperature retention, but all three failed to deliver. Hot Food Test: I placed freshly air-fried chicken breast (piping hot at 4am) into the 473ml jar. By noon (8 hours later), the chicken was completely cold. I even tried preheating the jar by filling it with boiling water and letting it sit for an hour before adding the hot food - same disappointing result. Cold Food Test: I pre-chilled the 236ml jar in the freezer for several hours before adding yogurt and oats at 4:30am. By 10am (just 5.5 hours later), the contents were already lukewarm.

Another awesome product from yeti. It's truly leak-proof, keeps the contents hot/cold for hours, and very easy to clean. The lid is two parts and it was tricky at first getting the vent section out but you just need to keep unscrewing the top half of the lid until the bottom half is completely off. One improvement I hope they make: the lid can be a bit difficult to get off after sitting with hot contents; some soft finger grooves/bevels in the lid would help. One personal preference I hope they'll consider: make a 10 or 12oz size. 8oz is just a tad small and the next size (16oz) is too large. Still 5 stars and I'll be buying more.

Soooo I have both jars in each size. I love them.!They were purchased for my son’s lunch. He is the kid that has to have hot lunch everyday. These jars are fantastic! The food that he leaves behind after lunch is still warm when I pick him up from school at the end of the day 3pm. Mind you his lunch is at 11 am. everyday. So if your wondering he is 9 years old and he has all yeti products backpack, Tumbler, food jars (2h and the lunch kit. All are fantastic!

Struggling to find a good star rating for this product. The MagVent lid is supposed to prevent the lid from becoming stuck due to vacuum pressure but no matter how tight I make sure the seal is or if I preheat the jar with hot water, it releases too much heat and my food turns cold within half an hour. I’ve resorted to using the lid without the MagVent and my food has stayed hot for hours. It creates a tighter seal and I may have to use some elbow grease to get it to open, but at least my food stays warm for longer. It’s a great product without the MagVent but I’m guessing the selling feature is the lid?

Great product! I got all size keep food warm all day! No need of microwave 🙏

Nice. I like. Holds my stash. 🥦 Camo is solid as container. 🤙🏽

Awsome storage container for all kinds of goods would recommend

As soon as I brought it home, I was unable to disassemble so I can wash it. I thought it was broke. I tried several times, and just as I was getting ready to make the drive back to REI, I decided to YouTube its functions. Lo and behold, I realized through the YouTube content that to open it properly you must push down as you continue to twist off as you would a bottle of medication. Double edge sword if this purchase is for a child, because he or she will now have knowledge how to open a pill bottle container. Just sayin… there’s that. I digress though, I do like it, and will look to purchase the next size up to complete my meal prep containers for work. I actually do recommend. Oh, forgot to mention… I’ve yet to put food in it so I don’t know how well it keeps anything at the temperature you seek. But I already have another yeti for my coffee/tea… I imagine it operates the same. So folks go get yours if you’ve not already.

Exercise in frustration. Cannot release the magnet and probably cannot return now that I've tried heat, cold and every other suggestion from Yeti and on line public support groups dedicated to addressing this terrible design. IMO, when it comes to Yeti, stick to the simple stuff, not over engineered containers with obvious design flaws. If you're going to include a strong magnet, at least make the screw top such that it can release the magnet. Curious to see if Yeti will take it back.