If you put hot or carbonated things in your or Flip (or perishable things that start to ferment), then the contents will be under pressure. That's probably why the directions tell you not to do that and also why you are getting an explosive opening. If you are bound and determined to put things in the bottle that are going to cause expanding gas, then leave excess room at the top, avoid shaking the bottle, and untwist the entire top every now and then to release the pressure build-up. Or better yet, get a "Twist" bottle for those things, and save the and Flip bottles for things that are not hot, carbonated, or likely to ferment. I love the more with each passing week, and everybody on my list is gettin' one for Christmas this year! The PURE GENIUS!!!

I want to make these our water bottle of choice.. we love PB bottles but they are not large enough and do not keep water cold all day. After a few years of use they have begun to leak. So when I saw the Owala bottles I was soo excited they meet all my wants: no touch spout, multiple levels of leak prevention, stay cold all day, look great! So far I do like them but one lid has already broken (4 weeks of use) which is terribly disappointing. Wondering if the others will last as long as the PB ones or if I traded down?

This is the best water bottle I've used! Lightweight and doesn't leak. I don't like having to screw caps on and off so this makes the experience a lot more enjoyable. I love that there's a handle too. You can tell Owala did a VERY meticulous job on design and it really shows. My only complaint is that I wish there were a charcoal grey option. I like the marshmallow color but the grey rubberized top is easy to attract stains and hard to clean. The bottle can be white, but I wish the top was charcoal grey. Thanks Owala! :)

Absolutely love the product !!! So easy to use and keeps water cold for a long time. After about two weeks of using the lid randomly broke at the hinge which was very disappointing and you can t individually buy a lid so now i have to buy a whole new water bottle.

True confessions, I did a ridiculous amount of contemplating before making an Owala purchase. Seriously, ridiculous. I finally took the plunge (yay water!) and got a . After using it for about 2 weeks I can say it really is a quality bottle. I love the built in straw feature even more than expected. I also love that the lid completely covers the mouthpiece and is easy to clean. I got the marshmallow color and was pleasantly surprised that it has a slight texture to the exterior which makes it feel really secure in my hand. The engineering to make the handle streamline when closed that also doubles as the locking feature is genius. Highly recommend. Cheers!

I was so excited to get my water bottle. All the nurses I work with ordered one. I was limited what color I could order. Not thrilled with the purple color one. Too many colors on the lid. It s kind of ugly. Now I know why the purple one was available. But the water bottle itself is great. Looking through all the bottles. They all look great and the bottles match the lid. Not sure who designed the colors for the one I got. Disappointing.

I love the colors that I got in the subscription box. I do like the design and I absolutely love that I can drink out of it like a straw without tipping it over or anything like that. That s great for adults but tipping it back like most kids do results in cold water all over the kid s face and down their shirt. A leakproof top would be nice. It also doesn t keep iced water cold as long as similar bottles. I assumed iced water would stay that way 12-24 hours but only about six hours.

I love being able to choose how to drink my water without changing the bottle, because sometimes you need to sip and other times chug! The 32oz bottle is also slender, so I can easily hold it with one hand. My other 32oz bottle was wider and always felt like I could easily drop it.

I randomly found an Owala bottle at my local grocery store and made an impulse purchase. It ended up being my favorite bottle and I have now bought my husband and 3 daughters each their own, gave one as a Christmas present to my boss and have influenced 4 coworkers to get their own. I love that it closes tightly, has a built in straw that I don t have to worry about getting in the way, and keeps my drink cold and ice for over 24 hours. May never buy another style water bottle again.

I got a Slytherin for my birthday and I am in LOVE. It is easily my favorite bottle. I like it so much I am ordering one for my brothers and husband as Christmas presents. I would highly recommend one. The straw is my favorite, and I feel like my water intake has gone up since receiving it.