Can You Put A Tervis In The Microwave: Is It Safe?

Tervis tumblers have become increasingly popular due to their durable construction and ability to maintain the temperature of their contents. Here’s the scoop on can you put a Tervis in the microwave!

These products make great sippy cups for young children and act as the perfect travel mug for your drink, with a lifetime guarantee and design options for personal expression. 

The BPA-free leak resistant tumbler is an excellent choice for hot beverages and cold beverages alike, is available in a wide range of drinkware, and is a sustainable option for single-use plastic drinkware. 

These air-insulated cups also keep your favorite hot beverage at the perfect temperature; however, you might have some health concerns. 

You want to follow manufacturers’ instructions carefully because the classic Tumbler is made from an improvised form of plastic. 

With the convenience of microwave cooking, a common question arises about microwaving these products, concerning microwave use and if your favorite mug comes with a microwave warning. 

Can You Put a Tervis in The Microwave

white tumbler on table at home

Is it common sense to not microwave Tervis cups? Can microwaving your Tervis container at high temperatures cause a chemical reaction like with other plastic products?

Can you put a Tervis in the microwave?

The simple answer is yes, you can microwave plastic Tervis tumblers, but there are some precautions to take when it comes to the production of heat. 

Tervis mugs, unlike any other plastic mug, can warm your favorite beverages thanks to their triple insulation.  

First, ensure that your Tervis features a microwave-safe label at the bottom of the cup and doesn’t have any metal parts such as metal lining or any other metal accents. As stainless steel items are different. 

It is important to remove your Tervis lids before microwaving to prevent excessive pressure buildup for your hot liquids. 

The good thing is that the insulation material will keep your drink warm while adhering to the terms of microwave safety. 

However, Tervis cups made post-2011 can be safely microwaved for no more than 30 seconds, according to the company website

The double-walled insulation helps keep the bottom surface of the cup safe. Allowing it to last for a long time and keep your Tervis cups microwave safe. 

Overall, it’s crucial to follow the manufacturer’s guidelines to ensure the safe usage of your Tervis products in the microwave.

Tervis Drinkware and Microwave Safety

Microwave Safe Materials

Tervis drinkware is known for its high-quality insulated tumblers made from a new generation polymer and resistant BPA-free material.

Which ensures durability while offering effective insulation for beverages. 

Most Tervis plastic tumblers, water bottles, and wine glasses are microwave-safe, allowing you to heat your drinks when needed. Without damaging the different materials or compromising insulation.

The classic line of Tervis cups has a double-wall construction as well. Making it durable and the perfect fit for cup holders. 

However, if your Tervis cup is a stainless steel tumbler, it’s not a good idea to microwave it. 

Metal and aluminum drinkware in general require a hand wash with a scratch-free sponge regardless. 

BPA-Free and Health Considerations

An important aspect of any microwave-safe plastic is the absence of harmful chemicals that could leach into food or drinks when heated. Such as the chemicals in polycarbonate plastics. 

Tervis tumblers are BPA-free, meaning they don’t contain bisphenol A, a chemical that can cause potential health issues. 

This absence of BPA makes Tervis tumblers a safer option for heating beverages in the microwave, as there’s no risk of estrogenic chemicals or any other toxic chemical being released from the plastic during the heating process.

However, be sure to check for any warning sign when using plastic products. As your microwavable mug might not be BPA-free. 

Metal Parts and Safety Precautions

While most Tervis plastic tumblers can be placed in the microwave for up to 30 seconds, it’s essential to remove any metallic parts, such as lid attachments, prior to microwaving. 

The good news is there is no material in the cups themselves. 

Microwaving metal can cause sparks and even make the microwave catch fire, posing significant safety risks. 

Additionally, stainless steel Tervis products should not be microwaved, as these are not considered microwave-safe.

To ensure safety, always pay close attention to the manufacturers’ instructions and inspect your Tervis drinkware before placing it in the microwave. 

By following these precautions and prioritizing microwave-safe materials, you can confidently enjoy the convenience of heating your beverages in Tervis drinkware without compromising safety or quality.

Sit back with your favorite coffee mug filled with hot chocolate knowing that you followed the safety instructions and that the double-wall insulation is keeping your drink warm properly. 

Microwaving Tervis Products

holding a tumbler in front of road

Tumblers and Cups

Tervis offers a variety of microwave-safe options, including clear tumblers and travel mugs like any Starbucks tumbler. 

These products have durable, air-insulated polymer that contains no BPA, keeping beverages at a desired temperature. 

You can microwave most Tervis tumblers for up to 30 seconds unless marked otherwise. As some decorative logos can contain metal. 

However, microwaving stainless steel Tervis items is not recommended.

Lids and Accessories

While Tervis tumblers and cups are often microwave-safe, it’s important to pay attention to the lids as well. 

Remove the lid before microwaving, as it might have metal parts that could cause problems. 

Moreover, removing the lid will prevent too much pressure from building up inside the tumbler during the microwaving process. 

A layer of air helps with heat, but it can damage the cup with it builds up inside, trapped under the lid. 

Stickers and Labels

When microwaving Tervis products, always check for a microwave-safe label on the bottom of the tumbler or cup. 

Your best friend is always the manufacturer’s instructions! 

This label indicates that the item can be safely used in a microwave. 

Keep in mind not to microwave Tervis items that have metallic stickers or labels attached, as these can cause sparks and damage to the microwave oven.

Following the manufacturer’s specified directions will ensure the safe microwaving of Tervis drinkware.

Additionally, even if you have a glass of iced water or other cold liquids, be sure to remove the label. 

Understanding the 30-Second Rule

pink tumbler outside

When it comes to microwaving Tervis tumblers, there is a general rule of thumb: do not microwave them for more than 30 seconds. 

But why is this time limit so important? 

We’ve got the scoop on the reasons behind the 30-second rule, exceptions, and instances when you should avoid microwaving your Tervis tumbler altogether.

Reason for the Time Limit

The main reason behind the 30-second limitation for microwaving Tervis tumblers is to prevent the plastic from deforming. 

Since Tervis tumblers, especially those made after 2011, use BPA-free plastic, some concerns may arise about the potential health risks associated with heating the plastic in a microwave. 

However, this time limit ensures the plastic remains safe and unharmed during the heating process. Allowing for second intervals of microwaving later on. 

According to Tervis, their tumblers can be safely microwaved for up to 30 seconds without causing any damage to the plastic or the microwave (as long as the microwave-safe symbol is present). 

In addition, ensuring that the lid is removed from the tumbler before microwaving helps reduce the risk of damaging the tumbler or the microwave itself.


Almost all Tervis products are designed to withstand microwaving for up to 30 seconds, but there are some exceptions:

  • Tumblers with decorative metal elements should not be microwaved, as this may cause sparks and potentially damage your microwave or the tumbler itself.
  • Always look for the microwave-safe symbol on the tumbler. If it’s missing, it is best to avoid microwaving the tumbler to prevent potential damage.

When to Avoid

There are times when it’s best to avoid microwaving your Tervis tumbler:

  • If the tumbler is missing the microwave-safe symbol or has decorative metal elements.
  • If the drink inside the tumbler is already hot or may require longer than 30 seconds to heat.
  • When attempting to sterilize a Tervis tumbler. Microwaving might not be the proper method for sterilization.
  • If you are unsure about the age or materials of your tumbler. Older tumblers made before 2011 may not be as microwave-safe as newer ones.

Proper Use and Care for Tervis Drinkware

Dishwasher Safe Handling

Tervis Classic Insulated drinkware is designed to be dishwasher safe and should be placed on the top rack of the dishwasher. 

When washing for the first time, make sure to clean your new Tervis product before using it. 

Using the dishwasher’s manufacturer’s settings is recommended for best results.

Freezing and Temperature Guidelines

When it comes to microwaving your Tervis cups, they are safe to microwave for up to 30 seconds as long as there is no metal part in their design. 

However, microwaving stainless steel Tervis items is not recommended.

As for freezing and temperature guidelines, it is important to avoid exposing Tervis drinkware to extreme temperatures or rapid temperature changes.

Warranty and Made-for-Life Guarantee

Tervis offers a Made for Life Guarantee on its products, which covers any damages caused by normal use. Including manufacturing defects, materials, and workmanship. 

To prolong the durability of your Tervis drinkware, it is essential to follow proper handling and care instructions. 

Even if you have a cup of water filled with ice cubes, it’s important to use your tumbler in a way that prolongs its use. 

By doing so, you can enjoy your Tervis to-go cups for many years, while also keeping your drinks at the ideal temperature.

Tervis Alternatives and Comparisons

woman drinking out of water bottle

Here’s the scoop on some alternatives to Tervis products and compare them, focusing on Yeti drinkware, wine glasses, and other options.

Yeti Drinkware

Yeti is a well-known brand in the drinkware industry, producing high-quality products that are often compared to Tervis. 

They offer stainless steel tumblers, mugs, and water bottles that are highly durable and known for excellent temperature retention. 

Here are some key features of Yeti drinkware:

  • Durable stainless steel construction
  • Vacuum insulation that keeps beverages hot or cold for extended periods
  • Dishwasher safe
  • Available in various sizes, colors, and designs

While Yeti drinkware is not microwavable due to its stainless steel construction, it offers other benefits such as durability and temperature retention that may be more important to some users.

Other tumblers include an Oz tumbler as well. 

Wine Glasses and Other Options

Wine glasses, including those made from glass, crystal, and plastic, are another alternative to consider for drinkware. 

In addition to being suitable for wine, they can be used for other beverages like water, juice, or even cocktails. Some key characteristics of wine glasses include:

  • Elegant design
  • Available in various sizes and shapes to suit different types of wine
  • Dishwasher safe (depending on the material)

While wine glasses may not be microwave safe, they offer an elegant alternative for enjoying beverages.

Other options for drinkware include:

  • Insulated stainless steel water bottles
  • Ceramic mugs
  • Glass tumblers
  • Plastic cups

Each of these options has its own pros and cons, and the choice ultimately depends on personal preferences, usage scenarios, and desired features.

There are many alternatives and comparisons to Tervis’s drinkware. 

Whether it’s durable Yeti products, elegant wine glasses, or other options, there’s a suitable choice for everyone’s needs and preferences.

Safety Tips and Recommendations

Hot and Cold Drinks

Tervis tumblers are designed to keep your hot drinks hot and cold drinks cold. 

However, when it comes to microwaving, some precautions must be taken. 

For hot drinks, such as hot coffee, it is essential to avoid overheating the tumbler or using it with any metal parts present. 

Overheating can lead to dangerous situations, such as sparks, fire, or even explosions.

While microwaving cold drinks is not typically dangerous, warming them up in the Tervis can cause some issues, especially with certain types of plastic containers or any metal parts.

Microwavable Containers

Many Tervis tumblers are made with plastic that is safe to put in the microwave, as long as you follow the appropriate microwave safety tips. 

Be cautious not to microwave your tumbler for more than 30 seconds, and always remove the lid before microwaving. 

It’s also essential to double-check the tumbler’s microwave symbol or warning label to make sure it is truly safe for microwaving.

  • Tips for microwavable containers:
    • Check microwave symbol
    • Remove the lid before microwaving
    • Do not microwave for more than 30 seconds

Clear Plastic

The clear plastic used in Tervis tumblers is generally safe for microwaving. 

However, if your tumbler contains any decorative or built-in metal parts, do not microwave it, as this poses a significant safety hazard.

Besides avoiding metal parts, other safety precautions you should consider include removing the lid during microwaving and ensuring that the plastic container is clean and free of damage or wear before microwaving.

With proper care and following these recommendations, you can enjoy the convenience of using your Tervis tumbler for hot and cold drinks without risking your health or safety.

Final Thoughts

hand holding cup on yellow background

When it comes to using a Tervis tumbler in the microwave, caution should be exercised. Tervis tumblers, known for their double wall insulation, are not recommended for use in the microwave.

The design of these tumblers, which includes an inner and outer layer, can cause the buildup of heat between the layers and potentially lead to damage or even injury.

While other microwave-safe tumblers, such as a Starbucks tumbler, may be designed differently and suitable for use in the microwave, it is crucial to refer to the specific guidelines provided by the manufacturer.

It is always best to prioritize safety and consult the instructions and warnings provided by Tervis or other reputable sources when determining whether a tumbler is microwave-safe.

By doing so, you can ensure a safe and enjoyable experience with your beverage containers, whether in the microwave or for other purposes.

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