Like Magic!
"I have several hyro flask bottles that I have owned for several years. I love them, but even with washing they were looking less than fantastic. One of which I'm shamed to admit looked really terrible after years of storing coffee in it. I bought these cleaning tabs on a whim. I was pleasantly surprised to find out how well they work. My bottles were like new!"
Blown Away!
"Absolutely blown away by how well these work. I had two bottles that sat for about a year, one 32 ounce Hydro Flask and the other a 64 oz no name flask. When I pulled the bottles from their hibernation I almost scrapped them due to the unholy B.O. these things accumulated during their slumber. Deterred by the price of a new Hydro Flask, I went forward with the daunting task of a deep cleaning. I hit them with a vinegar and baking soda solution and thoroughly cleaned both with a bottle brush. The icing on the cake, and what was to be the final blow to the stench, was these natural cleaning tablets. Not only did they clean what the bottle brush couldn't but they eradicated the gross vinegar smell and left the bottles nice and shiny.
I now drop these tabs in with hot water for about 1-30 minutes once every 2 weeks and BAM good as news."