Stanley 30 oz VS 40 oz : Is It Worth It?

Stanley 30 oz VS 40 oz

In a world that’s constantly on the move, having the right insulated mug by your side can make all the difference. Whether you’re sipping a morning cup of joe on your way to work, hydrating during an outdoor adventure, or keeping your favorite beverages at their optimal temperature throughout the day.

Best choice between the two insulated cups can impact your daily routine. Both of them are two popular insulated drinkware options from the brand. These are made from stainless steel and feature double-wall vacuum insulation that keeps drinks hot or cold for hours.

They also have a leak-proof lid with a built-in straw, making them ideal for on-the-go use. Before we dive into the details, it’s essential to recognize that both cups are designed to maintain the temperature of your beverages and keep them hot or cold for extended periods.

Size Comparison Of Both Cups

When it comes to choosing the right insulated mug, size is a crucial factor that can greatly influence your daily routine. Both cups offer similar features, but they differ in their capacities, which can impact their overall usability.

30 oz Mug

The 30 oz cup strikes a balance between capacity and portability. With a volume of 30 ounces (approximately 887 ml), it’s a versatile option that can hold a generous amount of your favorite beverages.

This size is perfect for those who prefer moderate portions and wish to keep their drinks at an optimal temperature for several hours. It fits well in most car cup holders and is convenient for one-handed operation.

The 40 oz Cup

Stepping up in capacity, the 40 oz cup offers an even larger volume for those who require more hydration or a larger serving of their beverage of choice.

With a capacity of 40 ounces (approximately 1.18 liters), this mug is ideal for longer outings, road trips, or activities where refills might be less frequent. However, it’s important to note that the increased capacity might make it slightly less compact and slightly more cumbersome to carry around.

Where to Buy 40 Oz

You can buy 40 Oz from the company’s official website and various other online stores like Amazon, Walmart, and Target. Brick & Mortar or Sporting goods stores, such as Dick’s Sporting Goods and Academy Sports+Outdoors, also sell these quenchers.

We have also figured out one of them as per our research to buy the 40 Oz cup. You can buy it from the below link with free shipping.

Which Is Better from in Sense of Portability

When deciding between the two sizes, it’s essential to consider how you’ll be using your Mug. The 30 oz cups compact size is great for daily commuting, fitting neatly into most bags and cup holders.

On the other hand, the 40 oz jar’s larger capacity could be more suitable for extended trips or situations where frequent refills aren’t possible. Keep in mind that the 40 oz might be a bit bulkier and require a bit more space in your bag or car.

Temperature Retention

An important thing about these mugs is how well they can keep your drinks at the right temperature whether it’s super cold or really hot. Both of the cups are good at this because of their special insulation. But because of their different sizes, they might do this a bit differently.

The 30 oz has double-wall vacuum insulation that helps keep your drinks cold for up to 09 hours, while iced drinks cold for up to 40 hours and your hot drinks warm for about 05 hours. If you like taking your time with your drinks or need them to stay just right during your work hours, this mug could be a great fit.

While bigger 40 oz also keeps your drinks at the right temperature, but because it’s larger, it might not do it for quite as long. It can keep cold drinks cool for about 11 hours while iced drinks cool for up to 02 days and hot drinks warm for around 07 hours.

If you’re planning longer trips or need your drinks to stay at the right temperature for a while, the 40 oz might be better.

Design and Build Quality

The way these adventure quenchers are made and how strong they are matters a lot. Let’s take a look at the design and build of these long-lasting cups, and how well they can handle daily use and a bit of roughness.

30 oz is built to fit well in your hand. It’s not too big or too small, which makes it comfortable to hold. The material it’s made from is strong and durable, so it can handle being carried around daily.

Lid is made to prevent leaks, and it even has a straw built in, which is convenient for sipping on the go. This Mug is a good balance between being strong and easy to use.

On the other hand, the 40 oz is a bit larger, so it might not feel as snug in your hand. However, it’s still built tough. The materials used are powerful and designed to withstand some roughness.

The lid is just like the one on the 30 oz it’s made to keep your drinks from spilling and has a straw. So, even though it’s bigger, it’s still practical and durable.

Side By Side Comparison

Stanley 30 oz Tumbler
Stanley 40 oz Tumbler
30 oz Tumbler
Available in Black, Black Glow, Chambray, Charcoal, Citron, Orchid, Pink Dusk, Pool, Rose Quartz, Rose Quartz Glow, Cream, Eucalyptus, Flint, Fog, Jade, Stainless Steel Shale, and Tigerlily colors.
Smaller dimensions 5.43 x 5.43 x 12.52 inches.
Slim & Lighter in weight 0.54 kg.
Priced at $35.
Compact and easy to hold, making it portable and easy to carry
Cold Drinks Stay chilly for around 9 hours.
Can keep ice frozen for up to 40 hours.
Keeps beverages warm for roughly 5 hours.
Well-suited for daily activities, work, and commutes.
Fits most cup holders, and bags. Moreover is easy to carry around.
40 oz Tumbler
Also have different color variants like Black, Black Glow, Chambray, Charcoal, Citron, Stainless Steel Shale, Tigerlily, Yarrow, Cream, Eucalyptus, Flint, Fog, Jade, Orchid, Pink Dusk, Pool, Rose Quartz, Rose Quartz Glow.
A bit larger dimensions 10 x 10 x 13.25 inches.
Wide & Heavier in weight 0.62 kg.
Expensive as comes in at $45.
Larger in size provides more capacity for beverages. But a bit hard to carry.
Keeps contents cool for about 11 hours.
Maintains ice enormously for up to 2 days.
Retains heat for about 7 hours.
Ideal for longer trips, outdoor adventures, and weekend getaways.
Designed to fit in standard cup holders and is built for durability.

Cleaning and Maintenance

Both of the cups are made of stainless steel, which is a natural stain- and odor-resistant material. However, it is still important to clean them regularly to remove any build-up of dirt or bacteria.

To clean the mug, you can either hand-wash them with warm, soapy water or put them in the dishwasher. If you hand-wash them, be sure to dry them thoroughly afterward to prevent rusting.

The lids and straws are also removable and dishwasher-safe. It is important to clean the lids and straws regularly, as they can harbor bacteria that can cause illness.

How To Wash The Tumbler In 6 Simple Steps

Many people have concerns about whether is this dishwasher safe? The answer is Yes, All Stanley Cups are dishwasher safe, but it is recommended to wash them by hand to extend their lifespan.

If you do choose to wash your cup in the dishwasher, be sure to place it on the top rack and use a mild dishwashing detergent. To wash your Mug, follow these simple steps:

1Disassemble the mug. This includes removing the lid, straw (if applicable), and any other removable parts.
2Rinse all of the parts with warm water.
3Wash the parts with mild soap and water. You can use a soft sponge or cloth to avoid scratching or damaging It.
4Pay special attention to the lid and straw, as these areas can be prone to build-up.
5Rinse the parts thoroughly with clean water.
6Allow the parts to air dry completely before reassembling.

If your cup is particularly dirty, you can soak it in a solution of warm water and baking soda for 30 minutes before washing it. You can also use a mild dishwashing brush to clean the inside of the cup.

Here we have reviewed both of them in detail for more understanding:

How often to wash your cup?

It is recommended to wash your mug after every use. This will help to prevent the build-up of bacteria and other contaminants. However, if you are only using your mug for water, you may be able to get away with washing it after every few days.

Accessories and Customization

The company offers a variety of accessories for their cups, including replacement lids, straws, and handles. They also offer silicone bumpers and sleeves to protect them from dents and scratches.

In addition to the accessories that the company offers, there are also several third-party accessories available. This includes custom engraving services, so you can personalize it with your name, logo, or favorite quote.

Environmental Impact

The environmental impact of these quenchers is highly commendable, primarily due to their construction using a remarkable 90% post-consumer recycled (PCR) BPA-free stainless steel. This conscientious choice not only underlines the brand’s commitment to sustainability.

But also significantly reduces the demand for virgin materials, minimizing resource consumption and environmental strain. By opting for materials with substantial recycled content, they play a vital role in promoting a circular economy.

And also offers users a durable and eco-friendly solution for their beverage needs. In addition to the recycled content of them, they are also made with low-energy manufacturing processes. This means that less energy is required to produce them, which further reduces their environmental impact.

The adventure quenchers are also BPA-free, which means that they do not contain Bisphenol A, a chemical that has been linked to health problems. This makes them a safe and healthy choice for users. By choosing these mugs, you can help reduce your environmental impact and make a difference for the planet.

In the United States, Americans use an estimated 500 million disposable cups every day. This amounts to about 16 billion disposable cups per year. Using a reusable tumbler can help reduce this number significantly.

Where to Buy?

Buying adventure quencher can be done through various methods, both online and in physical stores. Here’s a guide on where and how you can buy this?

How to Buy Online

Stanley WebsiteThe official website is a great place to buy these cups because they have a wide selection of colors, sizes, and styles to choose from. They also offer exclusive products that you can’t find anywhere else.
AmazonAmazon is another great and trusted place to buy these cups. They have a wide selection of these cups at competitive prices. You can also read customer reviews and ratings to help you make an informed decision.
Other Online RetailersOther online retailers that sell them include Walmart, Target, and Dick’s Sporting Goods.

Here are the links to the destination pages for your ease;

Where Can I Buy In Store?

  • There are many retailers across the United States. You can locate a list of retailers by using Store Locator on the official website. You can contact the store for stock availability and also can check their stock by Stock browsing on the store locator page.
  • Sporting goods stores, such as Dick’s Sporting Goods and Academy Sports + Outdoors, also sell these Mugs.
  • Department stores, such as Target and Walmart, also sell related quenchers.

User Tips and Hacks

Here are a few tips and hacks that users have found helpful when using these tumblers:

  • For even better temperature retention, pre-chill or pre-heat the mug by adding cold or hot water before pouring in your drink.
  • To prevent condensation on the exterior, consider using it sleeve or coaster.
  • Use the cup for beverages beyond water, such as iced tea, coffee, smoothies, or even soup.
  • For enhanced flavor, infuse your water with fruits or herbs while using it.
  • Some users have found that adding a small amount of baking soda and water can help remove tough stains or odors from the Mug.


In conclusion, the decision between the two insulated tumblers depends on your lifestyle and preferences. The 30 oz is compact and great for daily use, while the 40 oz offers more capacity for longer trips.

Both options use recycled stainless steel, showcasing the brand’s commitment to sustainability. So, when you decide between these cups, you’re not just picking a cup. You’re showing what you care about and how you want to enjoy your drinks.

These adventure quenchers are ready to join you in your daily journey, whether it’s routine days or exciting adventures. Cheers to your choice and all the awesome sips ahead!

Is the 40-ounce too big?

The 40-ounce offers a larger capacity, which can be advantageous for those who require more hydration or want a bigger serving of their favorite beverages. While it might feel slightly less compact compared to the 30 oz version, the 40 oz size is designed for longer trips, outdoor adventures, and situations where frequent refills might not be possible in mind. If you’re looking for a Cup that can accommodate extended periods without access to fresh drinks, the 40 oz size could be the right fit for you.

Does 40 oz fit in car cup holder?

Yes, it is designed to fit in most standard car cup holders. However, due to its larger size compared to the 30 oz version, it’s a good idea to check the dimensions of your specific car’s cup holders to ensure a proper fit.

Is Stanley Cup leak proof?

The Quencher H2.0 with Lid and Straw is splash-proof, but not leak-proof. While it’s designed to prevent spills when tipped over, Some users have noticed a few drops escaping even when the lid is securely closed. To minimize the potential for liquid escaping, make sure the lid is properly closed and secured before carrying the Cup. The quencher features a rotating lid with different positions to enhance leak resistance.
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