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The Ultimate Guide to Caring for Your Tumblers: Important Tips Before Using the Dishwasher

Read this before you put your mug in the dishwasher.

The impact of dishwashers

Dishwashers have become a modern marvel in the kitchen, saving us from the tedious task of washing dishes by hand. Not only do they prevent sore fingers and tired arms, but they also free up our time to spend with our loved ones. The dishwasher is a true blessing, and we have Josephine Cochrane to thank for its invention. According to Forgotten Newsmakers, Cochrane developed the dishwasher after realizing that her servants couldn’t clean her delicate china without breaking it. Today, about 80 million households in the United States have a dishwasher, according to the U.S. Energy Information Administration.

What not to put in the dishwasher

While dishwashers are amazing appliances, there are certain items that should never be washed in them if you want to extend the life of these items. A common mistake is to put cast iron cookware in the dishwasher, as this can cause the cast iron to rust. Plastic or metal cups should also be kept out of the dishwasher.

The effect of the dishwasher on cups

The performance of your tumbler may be compromised if you put it in the dishwasher. Insulated tumblers, which are designed to keep cold liquids cold and hot liquids hot, have an air space between the layers that provides insulation. This air space can be problematic in the dishwasher, where water can enter and compromise the effectiveness of the tumbler. If you hear your tumblers sloshing back and forth as you unload the dishwasher, it may be a sign that the seal has broken and your tumbler is no longer keeping your favorite beverage at the desired temperature.

How to Care for Mugs in the Dishwasher

If you prefer not to hand wash your tumblers, there are precautions you can take when using the dishwasher. The Spruce suggests placing the tumblers on the top rack to minimize the risk of damage. In addition, it is advisable to avoid high heat during the drying cycle, as excessive heat can affect tumbler performance. If your tumblers have stubborn coffee stains, a paste made of baking soda and water can help remove them effectively.

Bottom Line

Dishwashers are undoubtedly a time-saving convenience in the kitchen. However, it’s important to know what items should not be washed in them to prevent damage and maintain their longevity. When it comes to tumblers, hand washing is the safest option. But if you choose to use the dishwasher, take precautions such as placing them on the top rack and avoiding high heat. By following these guidelines, you can ensure that your tumblers stay in optimal condition so you can enjoy your favorite beverages at the perfect temperature for years to come.


Can I put my cup in the dishwasher?

Although it’s generally not recommended, some tumblers can be dishwasher safe. However, it’s important to consider the material and construction of your tumbler before making a decision.

Why shouldn’t I put my cup in the dishwasher?

Dishwashers can affect the performance and durability of your tumbler. The high heat, water pressure, and harsh detergents used in dishwashers can damage the insulation, break the seal, or cause your tumbler to lose its ability to keep beverages hot or cold.

How should I clean my cup if I can’t put it in the dishwasher?

If you prefer not to hand wash your tumbler, you can use mild dish soap and warm water to clean it. Gently scrub the inside and outside with a soft sponge or brush and rinse thoroughly. Avoid using abrasive cleaners or scouring pads that can scratch the surface.

Can I put my cup on the top rack of the dishwasher?

Yes, it’s generally safer to place your tumbler on the top rack of the dishwasher if you choose to wash it that way. This minimizes the risk of damage from the powerful water jets and heat sources on the bottom rack.

How do I remove stains from my cup?

For stubborn stains, make a paste with baking soda and water. Apply the paste to the stained area, let it sit for a few minutes, then scrub gently with a soft brush or sponge. Rinse thoroughly with warm water to remove any residue.

Will putting my cup in the dishwasher void the warranty?

It’s important to check the manufacturer’s instructions and warranty information for your specific tumbler. Some manufacturers may specifically state whether or not dishwashing is allowed. When in doubt, it’s best to err on the side of caution and avoid using the dishwasher to ensure your warranty remains valid.

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