Can You Put A Yeti In The Microwave?

Yeti cups have been the rave in the American nation for several years. From offices to institutes, shopping centers, and everywhere else in between, the insulated cups can be observed peeping out of bags, shopping carts, and hands of all quantities, ages, and colors.

Lovers of yeti cups profess their capacity to maintain the heat or coolness of beverages for hours and even days.

They have evolved to be so prominent that they are now a statement piece, and the price is set to back this up. But the topic is, can you put a yeti in the microwave? Well, no, not quite. I’ll tell you more.

Let’s go further.

What Is A Yeti Cup?

For those who haven’t yet known in particular what these cups are, yeti cups, or ramblers as some name them, are developed from the initial ingenious product “the Yeti cooler.” 

The Yeti cooler is a refined cooler formulated by fisher folk for maintaining their rations and getting cool for long hours. 

The Yeti cooler was created to deter fishing supplies and the occurring catch from going bad on long fishing voyages.

The Yeti cup was invented with the same intention. 

To put it simply, a Yeti Rambler is an insulated cup with flawless steel on the exterior. 

The verified Yeti website states that the Ramblers are ‘created from 18/8 stainless steel with double-wall space insulation’.

Yeti cups are excellent at maintaining the heat of drinks, but you might abandon your drink a little too long from time to time, and it’ll need a bit of heating up.

Can You Microwave Cold Drink In A Yeti Cup?

If your drink has gotten cold in your Yeti tumbler cup, can you place your Yeti in the microwave to heat it, or will it blow up or will it not work?

I read different things online, so I totally went on my own and checked it out myself to discover what would come about.

I checked it, and yes, you can microwave a Yeti cup without it setting on fire or resulting in actual harm. The drink inside will heat up, but it will be slower than if it were in a glass or ceramic cup.

Just be cautious, though. Observe your Yeti in situations where you will detect a spark and examine it to ensure the metal isn’t too heated to touch before bringing it out of the microwave.

Can You Put A Yeti In The Microwave?: What Could Happen If You Do This?

Having acknowledged that the Yeti cup or Rambler is created with steel, it’s not wise to microwave it. Setting any kind of metal in a microwave is something that’s warned against, and this is due to the technicalities behind how microwaves function.

Microwaves use radio waves to warm up the food or beverage positioned inside them. 

While elements such as glass permit the heated waves to move through them and onto the food or liquid inside, that is not the situation with metals. 

Such a stainless steel cup like a Yeti will reflect the waves, which generate a harmful condition that can create sparks that could bring on a fire.

Also, aside from being created with metal, the odd structure of the Yeti Rambler implies it has a higher likelihood of reflecting radio waves, thereby heightening the probability that it would destroy the microwave. 

The heavy insulation that describes the Yeti cup also implies that the liquid inside would mostly remain unmoved by the microwave’s heat waves. 

NOTE! The cup is constructed to conserve the temperature of its contents against the environmental conditions around it.

A Yeti tumbler cup is created with stainless steel, so when it is struck with microwaves, the free moving electrons in the metal can operate electricity.

Because the Yeti tumbler cup is created with thick and essentially flat metal, the electrons ripple back and forth, and the microwaves bounce off.

The metal will start to heat up after some time and ultimately become greatly hot if you leave it in there adequately long.

The thinner the metal, the sooner it will warm up; this is where you can result in fires. Tin foil and forks with thrusts and rims can shoot out electricity and damage your microwave.

But Yeti cups don’t have the exact compressed points like forks, so the danger of electric sparks is much lesser. When you place a Yeti cup in the microwave, the cup will warm up albeit slowly, but the metal also shoots off most microwaves rendering it difficult to warm the content.

Nevertheless, the microwaves will still get in through the lid of the cup to heat your drink, and this is why, in my test, the water did heat up a little bit in the first minute.

Even if you put the lid on, I’m confident the drink would warm up a little bit, but for best effects, take the cover off your Yeti cup before setting it in the microwave.

Will a Yeti Catch on Fire In Your Microwave?

No, it is uncertain that your Yeti cup will catch fire in the microwave. The only instance that might happen, and it’ll catch on fire, is if you abandon it there for an exceedingly lengthy interval without inspecting it.

I placed my Yeti cup in the microwave for about 1 minute, and the cup heated up a bit but was still very safe to feel, and there were NO sparks or explosions.

The cup heated up but wasn’t substantial enough that it would be too hot to touch.

Warming Up Food/Drink In a Glass Cup Is A Better Option

I placed 60ºF (16ºC) water in a Yeti Lowball Tumbler cup and my microwave for 1 minute. After a minute, the water had warmed up to roughly 80ºF (27ºC).

I also experimented with an equivalent proportion of water with the exact starting temperature and placed that in my microwave for 1 minute to discover how hot the water got. After one 1 minute, the water was much hotter at around 123ºC (50ºC).

So it’s apparent that heating up drinks in a regular cup does better and has less risk than placing your Yeti in the microwave.

But if you desire to heat your drink a tiny bit, then placing your Yeti in the microwave for a brief period should be okay.

What Do Other People Say About Putting Your Yeti In The Microwave?

I did a little digging to attempt to check what other people were talking about setting their Yeti cups in the microwave. 

I couldn’t get at anyone who really recounted a bad story of leaving their Yeti in the microwave and something terrible happening. 

While some will tell you no, the common consensus is that yes, it’s okay to set your Yeti in the microwave.

Frequently Asked Questions

Can You Put A Yeti Over A Fire?

No, you shouldn’t.

Don’t place an insulated or double-walled bottle or cup in the fire.

Are Yeti Cups Safe?

Yes, because YETI cups are BPA-free, there is an extra emphasis on “safe.” 

Why Shouldn’t I Put A Yeti In The Dishwasher?

Yeti cups are very safe in the dishwasher, but yeti lids are not. 

Yeti lids should be cleaned thoroughly by hand. Placing your Yeti lid in the dishwasher can damage the rubber gasket.

Can Yeti Cups Make You Sick?

Yes, it can.

If your Yeti cup is moldy, it can make you sick.

How Often Should You Wash Your Yeti Cup?

Once a week.


Can you put a yeti in the microwave? Sure you can. But you should be ready to stay put for a long time for your drink to heat up and be cautious with it, so it doesn’t generate sparks.

If you can’t adhere to these rules, it is best not to do it.

Thank you for reading!