You must drink your coffee very slowly for it to last 10 hours.Contigo all the way. I've spent a fortune on cheaper travel cups but haven't had to spend a penny since then as it has been fantastic.
Keeps my coffee hot for over 10 hours of my shift and is 100% leak free.
Not wrong!You must drink your coffee very slowly for it to last 10 hours.![]()
As someone who's been down this road many times over the years, the answer is this: THey don't exist. You might find one that leaks very little, but it'll still leak. I suspect this is down to the coffee / tea contracting as it cools down, creating a vacuum which messes with seals.
The trick is the second you pour in the hot water, close it, then shake it. It will then leak/hiss.
Then undo the top, then close it again. Now it's sealed.