Are Hydroflasks Dishwasher Safe? How to Wash Without Damaging?

Cleaning all your kitchen products in one go is a convenient way of using your dishwasher. Most of the time, people are focused on plates and dishes for dishwashers. But the interior place settings have sufficient room for other items as well.

Now you might be thinking if we can use the dishwashers for cleaning other cutlery items. They have designated positions for spoons, glass, and cups. But sometimes, various steel-made products like hydro flasks raise the doubt for cleaning in the dishwasher. 

Similarly, the question arises, can you put a hydro flask in a dishwasher? The answer is, not all of the hydro flasks can be placed in the dishwasher. There are several factors under which we will discuss the cleaning process of a hydro flask using a dishwasher.


Can you put a hydroflask in the dishwasher?

Not all of the hydro flasks are dishwasher safe. The powder-coated hydro flasks manufactured later than 2020 are dishwasher safe. However, the earlier models are not compatible with dishwasher cleaning.

The hydro flip lid and wide straw lid of the hydro flask are dishwasher safe. Some of the components of the hydroflask are just dishwasher safe which can be placed in the upper rack for the cleaning process.

All of the hydroflasks, which are powder-coated, are safe to be placed in the dishwasher. However, cleaning the lid of the hydroflask by hand can last its durability. The older hydroflasks are more fragile, and thus they cannot handle dishwasher cleaning. Therefore, the hydroflasks manufactured before the year 2020 are not safe to place in a dishwasher.

What happens if you place a Hydroflask in the dishwasher?

The hot water effect of the dishwasher may ruin the insulation effect of the hydro flask.

Hydro Flasks which are not powder coated are not safe to be placed in the dishwashers. Some individuals may take hydro flasks like a regular water glass or steel products. But the case with the hydro flasks is different.

These hydroflasks are vacuum insulated made of stainless steel material. They may seem like harsh products but placed inside a dishwasher can damage their durability factors and insulation. Dishwasher cleaning arms may not clean the interior of the hydro flask properly either.

Dishwashers often use warm water to clean cutlery, primarily when you use sanitize mode. The warm water effect helps to remove sticky stains and keeps the items bacteria-free. Hot water can affect the insulation characteristics of the flask, which can discolor the powder effect. 

Similarly, placing the flask in exterior hot water is not safe either. Heat can damage the external body of the flask, reducing the tendency to keep the water chilled.

How often should I clean my HydroFlask?

Hydro flasks should be cleaned once a day under daily use. 

Hydro flasks are safer to clean my hands with a bit of vinegar or soap water. The handwashing water flasks using warm water will keep them off the bacteria and retain their durability. 

For water: If you use your hydroflask for water, it is recommended to clean it once a week—the weekly clean means proper wash using soap, water, or vinegar. However, rinsing your hydro flask with warm water can reduce the chances of bacterial infections.

Related: Best Dishwasher For Hard Water

For tea or coffee: If you contain your hydro flasks with tea or coffee, it is recommended to clean them daily using proper rinsing methods. The coffee or tea components can be stickier and may result in more prominent effects than water.

Hydro flasks are a long-term product that is not disposable. They are filled and used daily, storing your water or any other sort of fluid held for hours. If you don’t clean your flask often, you might find bacteria and mold inside the flask, which is unhealthy.

How to clean your hydro flask?

Cleaning your hydro flask can earn you numerous health benefits and allow your flask to last longer. Here we have mentioned a step-by-step approach to clean your hydro flask properly:

  • Remove the components: First, you have to remove the parts of the hydro flask. Remove the lid and inner straw by separating them from the flask and the cover. Separating the components will allow in-depth cleaning of the flask.
  • Use warm water and soap: Next step is to separately clean each component of the hydro flask with warm water. Use a wet cleaning cloth or soaped sponge to clean the exterior of the hydro flask. Rinse the flask with warm water and soap mixture for bacteria removal.
  • Straw and lid cleaning: You can place the hydro flask straw or lid in the dishwasher top rack for cleaning. But cleaning them by hands can retain their life span. Ensure not to dip the flask, straw, or lid in hot water as it can permanently damage them.
  • Use vinegar: You can use some distilled vinegar to remove bacteria or mold from the flask. Pour half cup of vinegar and fill it with water. Let the solution sit for about 8 hours, and then clean the flask by rinsing it with water.
  • Use of baking soda: Avoid using any strong chemicals to clean your hydroflask. Baking soda helps to clean tough stains from your hydro flask. Use a mixture of water and two tablespoons of baking soda to make a scrub paste. Apply the mix to the colors, and then clean it off with water.
  • Dry the flask: After you are done with the cleaning process, allow the flask to sit and dry. You can use a dish rack for this purpose and make sure to keep the components of the flask separated.

Construction elements of the Hydro Flask

Hydro Flasks are rugged products to retain your fluids’ internal temperature and keep them safe from external effects. The construction elements and structure characteristics are mentioned below:


  • Hydro Flasks are made of pro-grade 18/8 stainless steel, which is suitable for food-grade quality. 
  • Stainless steel consists of mixed proportions of iron, nickel, and chromium. 
  • The interior container is plain stainless steel which prevents any rust build-up. 
  • The outer coating is done with thermostat polymer powder paint.


  • Hydro Flasks are built with double insulated walls made of stainless steel. Vacuum is kept between these walls to avoid condensation and temperature effects from the outside.
  • The insulation effect allows the internal fluid to retain its temperature keeping it cold or hot for hours.


  • Caps and lids
  • Slings
  • Straw
  • Bottle boots

Related: Best Dishwasher under $500


Keeping your food-grade items clean is a hygienic process. The daily use items such as hydro flask bottles may not be safe for dishwasher use, but it doesn’t mean they don’t require cleaning. Paying attention to the other alternatives for cleaning can give you several health benefits. However, some of the latest made hydro flasks tend to be dishwasher friendly for enhancing the advantages of buying these products.

Steve here! I like to research and write about best kitchen and home appliances. If you are on the hunt for the best products, quick hacks, and interesting food options, my writing will surely help you out!