Stanley has been here forever, but as of 2023, many have found these cups can keep drinks cold for long periods, but can they keep drinks hot for hours? Yes, it is all in its dual-wall vacuum-insulated design that the brand is famous for.
Not only that you can, pour boiling water directly into a Stanley cup, and you don’t have to wait for it to cool down. Trust me, you would not damage it. The vacuum insulation of the cup will keep your drink hot for up to 6 hours, making it a perfect choice for those who love to enjoy hot beverages throughout the day.
Personally, I am a pink Stanley 40oz type of girl, and I can attest to its effectiveness in keeping my beverages hot for long periods. This tumbler has made it incredibly convenient for me to prepare coffee and go about my day. I know that it will still be hot by the time I finish it at lunchtime. So, if you’re looking for a reliable and efficient way to keep your drinks hot, you can’t go wrong with a Stanley Cup.
Will Add Boiling Water To Your Stanley Cup Damage It?
Stanley cups have a durable interior that can withstand heat much higher than the 212°F (or 100°C) required for boiling water.
However, only pour hot liquids into the inside of your Stanley cup. If you immerse your tumbler in boiling water or expose it to a fire or another source of intense heat, you could ruin your Stanley’s paint, the smooth exterior, or its vacuum insulation.
Let’s not forget, that boiling can last up to 6-7 hours in your cup. I have seen on TikTok that a woman poured hot water into your Stanley and placed it in the freezer for 2 1/2 hours and the water was still steaming when she removed it.
Can You Place Your Stanley Cup Over A Stove Or Fire Pit?
Actually, boiling water in your Stanley cup or putting it over a light stove or fire pit is not a good idea,
First of all, you risk ruining your Stanley Cup.
A Stanley cup directly exposed to flames will damage your cup’s paint on the outside, leading to cracking and peeling. Similarly, the plastic parts, including the handle and lid, will melt or deform due to the heat source’s intensity. The outer walls of your tumbler will swell breaking the vacuum seal of your Stanley cup. It’s important to keep these things in mind when using your Stanley Cup to avoid any damage.
And even if you don’t care about damaging your Stanley cup, it won’t be a very effective way to boil water either. Stanley cups keep heat from escaping through their insulated walls, which means that your water will take a very long time to boil — until the vacuum seal fails and your tumbler is useless.