Are Hydro Flasks Dishwasher Safe? Everything You Need to Know

Hydro flasks have become increasingly popular over the past few years, thanks to their durability and ability to keep drinks cold or hot for hours. However, when it comes to cleaning them, there seems to be some confusion about whether or not they are dishwasher safe. In this article, we will discuss everything you need to know about cleaning your Hydro flask, including whether or not it is safe to put it in the dishwasher.

If you’re an avid Hydro flask user, you know that keeping it clean is important for both hygiene and the longevity of the product. But, with so many conflicting opinions on whether or not it’s safe to put it in the dishwasher, it can be difficult to know the best way to clean it. In this article, we will provide you with all the information you need to keep your Hydro flask clean and in top condition.

What is a Hydro flask?

Before we dive into the cleaning process, let’s briefly discuss what a Hydroflask is. A Hydroflask is a vacuum-insulated stainless steel water bottle designed to keep your drinks cold for up to 24 hours or hot for up to 12 hours. They come in a variety of sizes, colors, and styles and are perfect for outdoor activities, commuting, or everyday use.

How to Clean Your Hydro flask?

Keeping your Hydroflask clean is essential to prevent bacteria buildup and to ensure that your drinks taste fresh. Here’s a step-by-step guide on how to clean your Hydroflask:

Step 1: Empty Your Hydroflask

Make sure your Hydroflask is empty before you start cleaning it. If you’ve been using it for a while, give it a quick rinse to remove any remaining liquid.

Step 2: Disassemble the Lid

If your Hydroflask has a lid, disassemble it by unscrewing all the parts. This will make it easier to clean all the components thoroughly.

Step 3: Wash the Hydroflask and Lid with Warm, Soapy Water

Fill your sink with warm, soapy water and submerge your Hydroflask and its lid. Use a sponge or a bottle brush to scrub the interior and exterior of the bottle and lid. Be sure to clean the threads and other hard-to-reach areas.

Step 4: Rinse with Hot Water

Rinse your Hydroflask and lid with hot water to remove any soap residue. Make sure to rinse thoroughly to avoid leaving any soap taste in your drinks.

Step 5: Let it Air Dry

Place your Hydroflask and its lid upside down on a dish rack to air dry. Make sure to let it dry completely before you use it again.

Can You Put a Hydroflask in the Dishwasher?

The short answer is no; it is not recommended to put your Hydroflask in the dishwasher. While some people may have put their Hydroflask in the dishwasher with no issues, the manufacturer does not recommend it, and there are several reasons why.

The Risks of Putting Your Hydroflask in the Dishwasher

Here are some reasons why you should avoid putting your Hydroflask in the dishwasher:

1. Heat

Hydroflasks are made of stainless steel, and the high heat and strong detergents used in dishwashers can damage the material and affect its insulation properties.

2. Coatings and Decorations

Some Hydroflasks have coatings or decorations that can be damaged or fade in the dishwasher. This can affect the overall appearance of the bottle and reduce its resale value.

3. Components

If your Hydroflask has a lid or straw, the components may not be dishwasher safe and can be damaged by the high heat and strong detergents. This can cause leaks or reduce the effectiveness of the insulation.

4. Warping

The high heat in dishwashers can cause metal to warp, which can affect the seal and make your Hydroflask less effective at keeping your drinks cold or hot.

Alternatives to Dishwashing Your Hydroflask

If you’re not able to put your Hydroflask in the dishwasher, there are several alternatives that you can try:

1. Hand Wash

Hand washing is the most recommended way to clean your Hydroflask. Follow the steps outlined above to ensure that your Hydroflask is thoroughly cleaned.

2. Vinegar Solution

If you have stubborn stains or odors in your Hydroflask, you can use a solution of vinegar and water. Fill your Hydroflask with equal parts water and vinegar, let it sit for a few hours, then rinse it out with warm water.

3. Baking Soda Solution

You can also use a solution of baking soda and water to remove stains and odors from your Hydroflask. Fill your Hydroflask with warm water and a few tablespoons of baking soda, let it sit for a few hours, then rinse it out with warm water.

Other Cleaning Tips for Your Hydroflask

Here are some additional tips to keep your Hydroflask clean and in top condition:

1. Clean it regularly

To prevent bacteria buildup, clean your Hydroflask after every use.

2. Don’t use bleach or abrasive cleaners

Bleach and abrasive cleaners can damage the material and affect the insulation properties of your Hydroflask.

3. Store it with the lid off

When you’re not using your Hydroflask, store it with the lid off to allow it to dry completely and prevent any odors from developing.

How often should I clean my Hydroflask?

To prevent bacteria buildup, you should clean your Hydroflask after every use.

Can I use a dishwasher-safe water bottle brush to clean my Hydroflask?

Yes, you can use a dishwasher-safe water bottle brush to clean your Hydroflask, but be sure to follow the hand washing steps outlined above to ensure a thorough clean.


In conclusion, while Hydroflasks are a durable and convenient way to keep your drinks cold or hot, they are not dishwasher safe. The high heat and strong detergents can damage the material, affect the insulation properties, and damage any coatings or decorations. To ensure that your Hydroflask stays in top condition, follow the steps outlined above to hand wash it regularly, or use alternative cleaning methods such as vinegar or baking soda solutions.

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