EDIT: Since my flask was out of return date limit, I wrote an email to Borosil customer care email ID on the box. Within a day I got a response and the complaint was attended to via a phone call from Borosil customer care. When I explained the issue I was facing, immediately they decided to give me replacement. Pick-up of the defective item was arranged and a replacement was delivered within 6-7 days of writing the complaint email. 5 stars for the customer support. A rare gesture from any customer care in India!!!! Kudos to you Borosil. I am still not giving 5 stars as even the replacement product is leaking heat through the cap. But the heat retention is much better than the initial product. Overnight the loss in temperature is about 10 degrees. I will still stand by with the performance of Cello Vacu-steel flasks that we already have. Got impressed by the reviews here and bought Borosil vacuum flask. It's waste of money as it's nothing but a steel bottle that can't hold heat at all. I have Cello vacu-steel flasks that can hold heat beyond 12 hours, nearly as hot as when we filled it. In this flask boiling water becomes lukewarm within few hours. The moment you fill anything hot, you can feel the heat on the outer surface of the flask which means that heat dissipation has already started. Read more

high quality - value for money - durability - can hold temperature upto a day or more. will recommend. Read more

تحفظ البرودة 3 ايام ممتازة Read more

Best bottle i have bought. The quality of bottle is good. No leakage. The best thing is the paint over the bottle. It's still looking new after so many days of use Read more

I like the sturdiness of this bottle. It took a few times to get the right amount of torque to close the top. Too much torque pinched the gasket and I would have to reposition the gasket. It keeps hot beverages hot for hours, and cold beverages cold without any condensation build up. Read more

Rust in less than 6 months Read more

At first, it was keeping the drink cold inside but just in 3 months it started not to work. I feel the cold outside and bottle is sweating. It is just an ordinary bottle now! Read more

Worst product ever. A plastic bottles holds temperature better than this. Read more

This flask looks great and build very well, but the main purpose, keeping the temperature is not working, in less than 4 months the bottle doesn't keep the temperature, it is now just a ordinary bottle. Read more

Perfect. Read more