How to wash your water bottle?

How to wash your water bottle

The era of eco-friendly. There may be some people who bring a water bottle to accompany them at work, school, or when they go out. That water bottle you use every day, do you have a proper way to wash it? Here is a detailed summary of how to wash your clothes every day and how to remove dirt that has been attached.

Are you washing your water bottle clean?

Do you use water bottles? Because I want to save money, I want to drink what I like, and I want to reduce garbage. There are various reasons, but of course you have to wash it after using it. I used to use a thermos water bottle, but sometimes I find it a bit troublesome to wash it after I get home.

I wash it properly now, but in the past I used to just rinse it with water or wash it with the rubber packing on. The thermos was expensive and it’s stainless so it should be fine! I think I was taking care of miscellaneous. I don’t know if it’s a thermos or what, but it’s not good. For such sloppy people, I looked up how to wash a water bottle this time.

Preparing to wash the water bottle

When you wash your dishes, many of you probably use only a sponge to wash them. Even if you think you can wash it properly, if you wash only the visible part, there will actually be dirt left. Let’s review how to wash on this occasion.

What you need when cleaning

First of all, I will introduce the tools used for washing here. We will also introduce things that you should be careful about when washing the water bottle, so please refer to it.

dish detergent

Your regular detergent is fine. If possible, use a neutral detergent. Human beings have a part that senses taste by smell. If possible, it is recommended to use a non-scented drink because the smell will mix with the drink and it will not taste good.

dish sponge

You can use a regular sponge for the mouth and outside of the water bottle. Avoid using anything made of metal, such as metal scrubbers or steel wool, as they can scratch.

sponge with handle

It should be long enough to pass through the entrance of the water bottle and wash to the back. There are various types, from those with sponge tips to those with silicone tips, so choose the one that you think is easier to use.

Basic cleaning method for a water bottle

There are water bottles made of various materials such as plastic and stainless steel.

How to wash ① Disassemble the packing etc.

First of all, before washing with water, remove the rubber packing attached to the lid and main body. If you wash it lightly with water first, it will be slippery and difficult to remove. Also, since it is difficult to remove, it may tear if you pull it with all your strength, so be careful when removing it. And carefully wash the edges and gaps of the disassembled rubber packing with a brush. It would be better to prepare a special brush instead of an unsanitary used toothbrush. If the detergent remains, bacteria will increase, so rinse the fine parts well with water.

How to wash ② Wash the inside with a brush with a handle

Scrub inside with a handle brush soaked in detergent. Let’s wash gently so as not to damage the inside of the bottle body. This is because if there is a scratch on the inside of the main body, the metal components may flow out and cause metal poisoning. After carefully washing the inside, wash the outside. If you wash the outside without first washing the inside of the bottle body, the inside of the bottle will slip and be difficult to wash, and there is a risk of the bottle being dropped and dented. Finally, wash the spout and outside.

Silicon type is recommended.

The brush with handle is sold at Hyakuyen, but even if it’s a little expensive, it’s safer to use a silicone type brush without worrying about the sponge getting moldy. It does not become tired and small, and as a result, the brush lasts a long time, so it is economically recommended.

How to wash ③ Dry thoroughly

After thoroughly rinsing, turn it upside down and dry it well. If you have hot water, a final rinse with hot water after rinsing will help dry it out. If water droplets remain, they may become moldy and cause stains, so be sure to dry them completely.

There are also useful tools for drying!

Diatomaceous earth popular for bath mats. There is also a long and narrow type for the water bottle that dries the inside of the water bottle. If you put it in at the end of cleaning, it will dry quickly and convenient.

Read Also: How to wash curtains at home

How to remove stubborn stains from a water bottle

Mold and rust stains that can still be done. In order to use it carefully for a long time, I want to remove it cleanly and neatly. Here, we will introduce how to remove white stains, black mold, and red rust that are often found on stainless steel water bottles.

Rough white dirt

The rough, whitish stains are caused by calcium in the water. For rough stains, put about 1-2% citric acid and lukewarm water of about 40 degrees into the bottle body and leave it for about 3 hours without the lid. After that, rinse well and dry the inside and you’re done.

black mold

Black mold stains are caused by water remaining in the bottle without drying. It can be removed by rubbing, but rubbing too hard may damage it. Oxygen bleach is effective against such black mold.

There are many types of bleach, but I think that the kitchen haiter, such as the wide haiter, is the easiest to understand. Put lukewarm water of about 40 degrees and 1 teaspoon of oxygen bleach into the bottle body, leave it for about 30 minutes, rinse well and dry the inside. In fact, it is also effective for coffee stains, so please try it when you have become black with coffee.

red rust stains

Red, rusty stains are caused by iron in the water. For red rust, add about 10% vinegar to lukewarm water of about 40 degrees and put it in the main bottle. If you don’t have vinegar, you can use 1 teaspoon of citric acid instead. After about 30 minutes for vinegar and about an hour for citric acid, rinse well and dry thoroughly.

No matter what you do, it’s a cleaning agent when it’s troublesome!

No time for that! I want to do it quickly even if it costs money! For those who say, there is a water bottle cleaner as a last resort. All you have to do is take one tablet. It’s hard to wash when you’re tired, so you might want to rely on something like this once in a while.

Precautions when soaking

When soaking and washing the inside of the main unit, do not close the lid. The internal pressure can cause the lid to fly off. It’s very dangerous, so it’s a good idea to put a note on it so that other people can understand when you’re soaking it.

How not to wash a water bottle

A water bottle that looks relatively strong until it breaks or dents. Some of you may have already done this, but there are some things you should never do.

use chlorine detergent

Speaking of mold, chlorine bleach works very well. If you use a strong chlorine-based bleach, the metal will melt, and it will rust and make holes. Moreover, the chlorine system has a strong odor. It’s something you drink, so it’s a problem if the smell is too strong.

The rubber packing may deteriorate, and the paint, stickers, and printing on the outside of the bottle may peel off, so be careful not to confuse oxygen-based and chlorine-based products, and do not use chlorine-based products.

Should I not use baking soda?

Baking soda familiar to those who clean bleach, citric acid. As with citric acid, soaking in hot water with 1 teaspoon of baking soda will remove stains and odors. However, since baking soda has an abrasive effect, scrubbing is strictly prohibited. Be careful not to scrub it when using it.

use the dishwasher

It’s easier to wash in the dishwasher than washing with water! Everyone thinks that, but the dishwasher is washed at high temperature, so there is a risk that the water bottle will be deformed by the heat. It seems that hand washing is safe because the paint on the bottle may also peel off.


How was it? This time I told you how to wash the water bottle. Even the slightest carelessness will make it dirty in no time, but I would like to take good care of it so that it lasts as long as possible. When using bleach, use oxygen-based bleach instead of chlorine-based, and wash gently so as not to damage it.