I love these! Just drop the tablet in and let it do its thing. I use it on all my Hydro flask and it gets them very clean.

Cleans well

Super handy for cleaning water bottles on the go, especially when you can't get a brush in there.

We used these during a cross country bike challenge and they were a lifesaver. After a day or two in the hot sun, our water bottles would get pretty funky from whatever mix of water, electrolyte drinks, or whatever else we had in them. Just drop a tablet in, add some water, swish it around a bunch, and you're good to go.

I will say, when i have a bottle brush handy I still like to use one alongside the tablet because I think it does help get things a little cleaner. And I tend to rinse a few extra times afterward since my taste buds are pretty sensitive and I dont want any residual taste. But honestly thats more of a me thing than a knock on the product.

Where these really shine is when you're out and about and need a quick clean without any real tools. Especially for bottles with narrow openings where a brush wouldn't even fit anyway. During our ride we were cleaning several bottles every couple days and these made it super easy to at least get them freshened up without hauling around a bunch of cleaning supplies.

Highly recommend if you need something portable and simple for keeping your bottles from getting gross

Easy to use and seems to work pretty well.

Worked really well on my water bottle. I definitely recommend using a minimum of two tablets to remove lime scale. Rinsed cleanly without any off putting after taste. Would definitely buy it again!