Home Crochet baby clothesRemove coffee smell from thermos, plastic & Co. | manual

Remove coffee smell from thermos, plastic & Co. | manual

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  • Remove coffee smell from thermos flask
    • problem
    • preparation
  • Remove the smell of coffee | 3 methods
    • Baking powder | manual
    • Vinegar | manual
    • Denture cleaner | manual

You have been using your new thermos flask for months and notice the intense smell of coffee that can not even be removed after a single pass in the dishwasher ">

Removing coffee odor is possible even without knowledge. Despite the intensity with which the bitter note settles in your thermos or the plastic cup, the odor can be removed with little effort or with the appropriate means. It depends mainly on the material that has assumed the smell.

For example, the smell of metal or glass is much easier to remove than plastic or rubber. For this reason, you need appropriate methods to remove the smell of coffee, even if it is extremely persistent. For these special tools are needed that work against the smell and existing dirt.

Remove coffee smell from thermos flask


Coffee odor is a typical problem that occurs with many thermos and coffee pots . The reason for this is the aroma of the coffee beans or the ground coffee, which are released due to the heat and absorbed by the material. Over time, the aroma increases and is noticeable, for example when you fill other drinks in the thermos. The bitter aroma is even tastable in water, which can have a negative effect on the enjoyment.

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These are not just thermos flasks or cups, but all materials that can absorb the smell at all. Since thermos flasks use all the materials that can absorb the smell of coffee, all you need to know is how to clean them.

These materials include:

  • plastic
  • rubber
  • silicone

Metal and glass absorb the smell only badly. If anything, this is a by- product of coffee leftovers that have not been removed. For the other materials, however, the smell can be so strong that detergent and water are insufficient. In this case, you must use other measures to remove the smell of coffee.

For this reason, thermoses are ideal for describing the methods you can use to remove the odors from the materials, as plastic, rubber and silicone are commonly used for them. Especially seals are made of rubber and silicone, which often take on the smell and can not get rid of. Fortunately, suitable methods for this problem can be found.

Note: Be sure to avoid the use of chemical odor control agents that are not suitable for household consumption or use. The ingredients of the remedies could become lodged in the material and be released to you when drinking, which is significantly worse than the smell of coffee.


There are several ways to remove the smell of coffee and then use your thermos undisturbed again. In addition to the materials used, it is important to prepare well and make the thermos or other objects made of silicone, plastic and rubber odorless. In preparation, it is particularly important to remove dirt from the material and thus improve the effect of the funds used.

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For the preparation you need the following utensils:

  • Bottle or toothbrush

  • sponge
  • salt
  • baking powder

Since the smell of coffee only sets inside the bottle or jug, the use of a bottle brush is necessary. Only with this you get to hard to reach places. If you do not want to free your thermos, but plastic cups, rubber caps or silicone bakeware from the smell of coffee, put instead on a sponge, as it is much easier to use.

It is important that you can scrub with the utensil to remove soiling . Once you have the materials and utensils, follow these instructions to clean the smelly objects.

Step 1: Start by locating the coffee contamination. This facilitates the first cleaning, especially with cans that do not need to be cleaned with a bottle brush. If you want to clean a bottle or jug, you do not need to do this as you will not remove the dirt locally.

Step 2: Mix salt and baking soda together in a separate bowl and add this mixture to the coffee grounds.

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For a jug or bottle, simply fill it directly into the container. Now add water to the sponge or bottle brush and rub the salt-baking powder mixture . Together, this acts as a cleaning agent that removes the stubborn coffee dirt.

Step 3: Rub the product until the treated surface is free from all coffee contamination. This is especially important in containers such as a press jug, which discolor over time and make cleaning much more difficult.

Step 4: After the soiling has been removed, rinse the pot thoroughly with clear water. Then dry them well.

Already, you should notice that the smell of coffee is much weaker. If the stains are not so intense or you have not used your thermos or the new plastic coffee mug for a long time, this step might be enough to get rid of the smell of coffee. Often, however, this step does not work so well on parts such as gaskets or other silicone and rubber components .

Tip: You can avoid the smell of coffee by cleaning your thermos with cold water only. Cold water helps to ensure that the smell does not draw any more into the material during cleaning, saving you a lot more work in the future.

Remove the smell of coffee | 3 methods

If you want to remove the smell of coffee, there are three different methods available. Best of all, you only use home remedies for these methods, which will not make your use dangerous. Even if you drink coffee from your thermos directly after cleaning it will not cause any problems. Depending on the material, some of the methods are much better and should be preferred for this reason. How to use them, you will learn in the upcoming instructions.

Baking powder | manual

Baking soda is also effective without salt, but by itself not as good for cleaning. It is better for fighting odors.

Use the following instructions for this:

  • boil water
  • put in the thermos
  • Add three to four spoonfuls of baking powder

  • Close the jug

  • shake vigorously
  • at least overnight

Of course you can also use the mixture in a container for soaking rubber parts after it has been mixed. Simply place the part in the mixture and rinse and dry after the exposure time.

Vinegar | manual

Vinegar is ideal for you if you want to free plastics from the smell of coffee. The variant with vinegar is very easy to implement, because you just have to fill only vinegar in the bottle. For this you should definitely not use high quality vinegar, which is used in the kitchen. Leave the vinegar to work for eight to twelve hours and then pour it away before rinsing off the portion or rinsing the thermos flask.

Tip: If you want to enhance the effect of vinegar, mix vinegar with two to three spoons of baking soda and put them in the pot. The mixture is much more aggressive to the smell, but starts to foam when you use it, so do not put too much in the thermos.

Denture cleaner | manual

One of the best ways to rid steel, other metals, glass and silicones of the smell of coffee is the use of denture cleaners. Denture cleaners are tabs or tablets that are simply put into the water and thus achieve their effect. Denture cleaners are based on a variety of salts that have an effective solubility, even on odors.

That makes them ideal for this use. Teeth cleansing tabs are available for about five euros per 100 pieces, which will last for a long time. You can buy them in supermarkets and drugstores, pharmacies and the Internet.

Once you've purchased the tabs, do the following:

Step 1: Take your thermos and put a tab in it.

For a particularly large jug, take two tabs.

Step 2: If you only want to release some silicone parts from the smell of coffee, use a bowl instead and place the silicone part together with a tab in it. The dosage of the tabs is selected according to the size of the parts. For example, if you do not get the intense smell out of the material after baking muffins with coffee, it's worth two instead of one tab, especially if the baking pan is very large.

Step 3: Now pour water into the thermos or container in which the parts to be cleaned are located. The denture cleaner will now react and remove the smell of coffee.

Step 4: Let the mixture soak for a minimum of six to eight hours. Overnight is also recommended, because the coffee smell can be effectively removed from the material.

Step 5: Then pour the water away and rinse the jug or parts thoroughly. Then dry and check with your nose again. If the smell of coffee is not completely gone, you need to do the steps again.

Tip: Instead of the denture cleaner you can also use dishwasher salt or tabs, especially if you want to rid the glass container of odor. Apply the same procedure, rinse and dry the container before using it again.

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