The Detroit Post
Saturday, 16 October, 2021

Rust In Hydro Flask

Brent Mccoy
• Thursday, 22 October, 2020
• 7 min read

When regular steel is exposed to water ferric oxide is created which has that red rust color. However, when stainless steel is exposed to water chromium oxide is created.

hydro flask decorated limited edition laikoe water multicolor thermos stainless steel 18oz bottle rust oz bottles drinking insulated manufacturer china


This protects the underlying stainless steel from being exposed to more water and stops it rusting. So there is no magic, or no plastic layer over the stainless steel on the inside of your Hydroplane.

There is also this customer review where they claim there is rust in the bottle after 2-3 months of usage. There are a variety of things that can cause the stainless steel in a Hydroplane to begin to corrode and rust.

Stainless steel is considered non-reactive to most food/drinks but corrosive chemicals and super acidic liquids like bleach and chlorine can cause the stainless steel to corrode and begin to rust. The 18/8 stainless steel that Hydro Flasks are made from can withstand heats up to about 750-1550 °F (400-850 °C) without issues.

But once you get up to these temperatures it can cause the surface of the stainless steel to no longer contain enough chromium to protect the bottle from rusting. There are other more extreme reasons stainless steel can rust discussed here, but they are highly unlikely to affect your Hydroplane.

You simply want to keep it away from corrosive liquids like bleach or salt water. There are a couple of things rights off the bat that you DON'T want to do as this can cause more rust and other issues with your Hydroplane.

hydro rust flasks flask clean

Magic erasers are made from a type of plastic foam that happens to be micro-abrasive. This dissolves the rust corrosion and you can then wipe most of it off with a bottle brush with tough bristles or with the magic eraser mentioned above.

If you want to go to the extreme then you can buy phosphoric acid or gel that you can use to remove the rust. Using an abrasive cleaner like bicarb soda can help to remove the rust with a good scrub.

Or get an abrasive sponge or bottle brush and use that to rub away the rust. Just make sure you spotless your bottle afterward to remove any steel particles as these will likely cause future rust issues.

I love it so much as it keeps my water so cold for many hours BUT there is a metallic taste/feeling the moment my lips touch/ the rim where I drink off of it. The red one I ordered from Mercaris, it came with a white rubber gasket in the sports lid however the one straw it came with is precut and too long.

I've been searching high and low for a blueberry and lava 40oz, and they are finally in my hands. If anyone knows where I can find the pink movement collection bottle, please let me know.

flask hydro clan annie frame stainless steal interior easy

I fucked up and didn’t buy it when I should’ve and now having major regret. My Hydro has gotten a soapy taste to it, and it's been this way for 2-3 months and I can’t manage to drink from it.

Much like any bottle, damp dark spaces make for excellent spots for bacteria to grow. That said, you’ll want to check and clean out the lid after using it to prevent any build up and getting rid of moisture.

Cleaning proactively will keep your bottle from getting really gross over time and ready to use at a moment’s notice. In the worst case scenario, you can put the plastic lid in the top rack of the dishwasher if it needs a deep cleaning.

Trust me, it’s not a great time when you’re ready to head out on a trip and you notice your bottle is filthy! Aside from cleaning your bottle properly, there’s some other things to keep in mind to make sure it stays in great condition.

Similar to the above, the insulation will prevent the water from actually warming up and will just mess up the exterior of the bottle. I’ve enjoyed the outdoors from a very young age, so it was natural to blog about it.

flask oz hydro gum iron bottle bubble water straw lid insulated cold double sports xobmaer walled canteen lids vacuum mouth

I even had a job in college where we went to various parks and showed people how to have a good time. In order to get a good cleaning, you’ll need to wash all the components, not just the outside of the bottle and the spout.

Wash your Hydro Flask pieces separately with hot, soapy water. Use a clean dishcloth or sponge to wash the outside of your bottle, all models of Hydro Flask lids, and the outside of the straws.

A sponge or rag won’t be able to reach the bottom of your bottle, so you’ll definitely want to use some type of long brush. A bottle brush from the baby section of your local department store would perfectly.

Submerging the lid for an extended period of time can trap water inside it. Pay special attention to the drinking spouts since this is where bacteria like to collect.

Simply insert the pipe cleaner into one end of the straw, and firmly move it up and down along the insides to remove any buildup. Leaving soap in any of the pieces of your Hydro Flask can lead to a build up of residue.


Slowly rotate the lid under the water to make sure it is completely rinsed off. Hold one opening end of the straw under the running tap water to rinse it out.

The Hydro Flip and Wide Straw models are the only 2 lids that can be washed in the dishwasher. Note that frequent washing in the dishwasher can cause extra wear and tear on these lids.

The lid and straw may take longer to dry than the bottle because of the threading, enclosed spaces, and small nooks. To avoid a build up of germs and bacteria, make sure all the pieces are allowed to air dry completely before reusing them.

Try washing your Hydro Flask in the evening, that way it can dry overnight and will be ready to use the next morning. Pour ½ cup (118 ml) of distilled white vinegar into your Hydro Flask.

Gently swirl the vinegar around in a circular motion to coat the inside of your flask. Alternatively, fill your Hydro Flask about of the way with vinegar and the rest of the way with water.

hydro flask 32 40oz water double drinking wall steel number oz bottle thermos side 32oz stainless insulated bottles mouth wide

Using other chemicals like bleach or chlorine can damage the outside of the bottle and cause the stainless steel to rust. Use a dish drying rack, or prop the bottle up at an angle against the side of the sink.

Air needs to be able to circulate in order to prevent bacteria from growing. Make sure your Hydro Flask is ready to use by washing it in the evening and allowing it to dry overnight.

Mix 2-3 tbsp (30-44mL) of baking soda with warm water to form a paste. Put the baking soda in a small a bowl and stir in a little of water.

If you put too much water and the mixture is too thin, add a little more baking soda to thicken it. Dip a bottle brush into the paste, making sure to coat the bristles heavily.

Target areas that are badly stained by using small, circular motions. Use the bottle brush along the insides of the flask to loosen up the baking soda paste.

hydro flask custom national mountains flasks park personalized mom contact dad feather trees

Place the bottle in a dish drying rack, or try propping it an angle against your kitchen wall or the side of the sink. Just make sure it has proper air circulation to prevent bacteria from growing.

To help with timing, try washing your Hydro Flask in the evening to allow it to dry overnight and be ready to use the next day.

Other Articles You Might Be Interested In

01: Lynch Real Estate Kansas City Ks
02: Lynd Real Estate San Antonio
03: Lynnhaven Real Estate Virginia Beach
04: Lyons Real Estate Amarillo Tx
05: Lyon Real Estate East Sacramento
06: Lyon Real Estate Fresno
07: Lyon Real Estate Fresno Ca
08: Lyon Real Estate Listings Sacramento
09: Lyon Real Estate Midtown Sacramento
10: Lyon Real Estate Milwaukee
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -