The reason is… Yeti cups and bottles are made from what's called 18/8 stainless steel (also called 304 stainless steel. The 18/8 stands for 18% chromium and 8% nickel. ... Once exposed to water/air the iron in the steel would react and create ferric oxide (also known as iron oxide or rust).
How long do Yeti Ramblers last?
Yeti tumbler cups and bottles can keep drinks cold for 6+ hours to 3+ days. The colder the drink starts, the more ice in the drink, the larger the drink volume and the outside temperature all play a role in how long a drink will stay cold for. 12-24 hours is a good estimate for iced water.
Do yetis go bad?
They Can Lose Their Vacuum Seal and Their Effectiveness Once there is air inside the vacuum the cup will no longer be a great insulator and you'll notice your ice melting way faster or your drink not staying as hot for long. It's also difficult to tell just by looking at your tumbler if it is faulty and has this issue.
Can you put a tumbler in the fridge?
There's nothing like a cold drink to refresh you, and there's one simple trick that can keep your cold drink even colder longer: store your tumbler in the fridge. ... Instead, store your tumbler in the fridge and you can keep your drinks cold for up to two additional hours!
Can you put Yeti Rambler in freezer?
The reason you can't freeze your Yeti cup is that as liquid cools it expands in all directions. The expansion can cause the stainless steel walls of the Yeti cup to deform and can sometimes also break the vacuum seal. If this happens your Yeti cup will no longer insulate properly.
Can you put ice in a Yeti tumbler?
The tumblers will keep your soda, beer, wine, smoothie, or mixed drinks ice cold. And the Colster Can Insulators are like a steel bear hug for your cans and longnecks. As for our bottles, they go wherever there's a need for ice-cold or piping-hot beverages.
How long will a Yeti Rambler keep ice?
Yeti tumbler cups and bottles can keep drinks cold for 6+ hours to 3+ days. The colder the drink starts, the more ice in the drink, the larger the drink volume and the outside temperature all play a role in how long a drink will stay cold for. 12-24 hours is a good estimate for iced water.