How To Clean Chimney Without Caustic Soda? (2023)

If you are looking for an alternative for how to clean chimney without caustic soda? Then you come to the correct place.

In this blog, we are going to discuss 5 simple tips on how to clean the kitchen chimney at home without using harmful powders like caustic soda.

It is important to choose the right cleaning method for the job, as well as to do the job safely and correctly. Many people think that caustic soda, which can be purchased at hardware stores, is necessary to clean their chimney filter

However, this isn’t always true. When used properly, regular old baking soda can be just as effective as caustic soda in removing soot and grease from your chimney filter, without using dangerous chemicals or powders.

Recommended Read: Best kitchen chimney in India

What is Caustic Soda?

what is caustic soda

Caustic soda, also known as sodium hydroxide (NaOH), is used in many industrial applications, particularly in chemical processing plants. In basic terms, it helps create soap. A compound made from animal fats or vegetable oils mixed with lye that can be washed off your skin. 

It’s a pretty strong solution and should be handled with care. Here are some useful tips on how to use caustic soda safely.  

  • When using, wear protective clothing such as rubber gloves, eye protection, and long sleeves/pants for best results. 
  • Be sure to always mix caustic soda with water in an appropriate container before applying it anywhere near your body or property. 

After all, concentrated sodium hydroxide—which can burn you if you come into contact with it undiluted? Never add water directly to caustic soda because of its nature that will produce steam which could burn you even more severely than pure caustic soda ever could.

Chimney Filter Cleaning

Recommended Read: Best Ductless Chimney / Best Silent Chimney

How to clean a chimney without caustic soda?

kitchen chimney filter types

If you want to know how to clean a chimney filter without using caustic soda, you need not worry. Here are some alternatives for how to clean a chimney at home,

Total Time: 3 minutes

  1. Baking Soda

    baking soda

    You can use baking soda as an alternative. Yes, it sounds funny and unusual, but after all, it is your safety that matters. The most important thing about baking soda is that you buy pure baking soda, not something that already has other ingredients added to it.
    Get your baking soda and add it in equal parts with water. Pour it into a spray bottle and pour it into your filter from above. Let it sit for 15 minutes and use some good old clothes to wipe down everything. 
    If you want, you can also add about two teaspoons of vinegar for every two cups of water that you are going to mix to get rid of more grease on your filter. It will dissolve more grease with much less effort.
    And if possible, do not forget about adding more water afterward, so that you don’t leave any traces of baking soda on your chimney filter.

  2. Dishwashing Liquid

    how to clean kitchen chimney at home

    You can also use dishwashing liquid for cleaning your filters. Pour it in equal parts with water and pour it into your spray bottle. Spray on a cloth and wipe down everything.
    You can also use dish soap that doesn’t contain perfume or other extra ingredients because they can damage your filters over time.

    It is best if you dilute it with more water so that you don’t leave any traces of soap behind. If you want, you can add some vinegar as well. Vinegar will dissolve even more grease than baking soda and is safer than most chemicals. 

    It is important to know how much vinegar to add because too much will ruin your chimney filter after some time since vinegar eats away at rubber, which is what most kitchen chimney filters are made out of nowadays. 

    So be careful when adding vinegar to anything related to cooking or baking as its acidic nature could damage any surface it comes in contact with.

  3. Vinegar

    how to clean kitchen chimney at home

    You can also use vinegar to clean your kitchen chimney. To do so, mix equal parts vinegar and water and pour it into your spray bottle. Wipe off everything with a cloth, but make sure not to use too much vinegar and spill it everywhere.

    The final step in this process is to rinse everything thoroughly before you place it back on your appliance, as any traces of vinegar can slowly eat away at the rubber and it is best to dilute it so you don’t leave any traces of vinegar behind.

    If you want, you can also add baking soda to get that extra kick of grease-fighting power. Vinegar is acidic and causes wear and tear to things like rubber over time, but baking soda has an alkaline nature which cancels out acidic substances. That’s why they make a perfect match for getting rid of grease from your filter.

    After using these methods, always make sure to rinse them all off completely because the water left on surfaces and filters can lead to undesirable results over time.

  4. Paint Thinner

    You can use paint thinner to clean your chimney filter too. Its chemicals will dissolve anything, but be careful not to spill it around or point it in any direction other than the filter.
    There’s the risk of long-term damage to your appliance if you use too much detergent and if you’re not careful. 

    The smell could even hurt you. So it’s best to use only what’s necessary and rinse everything off. Afterward, Spray the cleaning liquid onto the desired surface, then use a cloth to wipe the liquid across the surface until it is clean. 

    Be sure to avoid coming into contact with the liquid so you don’t accidentally spread it. When finished, be sure to wash your hands thoroughly.

  5. Detergent Powder

    how to clean kitchen chimney at home

    Add detergent powder to boiling water to wash out oils and grease stains. The surfactants present in the detergent easily break down the oils. To begin, remove the filters from the chimney and fill a metal pot with boiling water.

    Let’s begin! Add 3 tablespoons of detergent to the water, and boil it once again. Submerge the filters into the pot and then leave them in boiling water. Put the filters under running water and scrub them with a wet cloth. Leave them to dry completely before putting them into the chimney.


We hope you enjoyed our article about how to clean a chimney without caustic soda. This method is great for those who want to get their chimney cleaned with a simple and effective DIY method that costs less.

We hope that you find our solution as helpful as we do and will be able to clean your chimney without caustic soda next time it needs a cleaning.

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Frequently Asked Questions

How Often Should You Clean the Kitchen Chimney?

Ideally, you should clean your chimney filter once every 2 months. Depending on how often you use it, that might mean twice in one month. Even if you never use it, grease will still build up over time and can eventually cause dangerous creosote buildup (causing flue fires). 
Cleaning your kitchen chimney regularly, not only makes your work better and safer but your whole house will also smell much nicer. To clean your chimney effectively without caustic soda, practice one of the alternatives listed above.

Which chemical is used to clean chimneys?

The usual method of cleaning chimneys, ovens, and boilers was by using powerful caustic soda and baking soda. However, it has been found that using salt water is much better than sodium hydroxide, or NaOH.
The advantage of using salt water instead of sodium hydroxide is that it will not cause any damage to your pipes. If you have some piping in your house that is made out of cast iron, it can corrode when they come into contact with too many alkaline chemicals

What is the easiest way to clean a kitchen chimney?

A chimney on your stove becomes clogged with grease and soot can be a real pain to clean. But you don’t need to run out and buy caustic cleaning chemicals, which are expensive and not good for you or your kitchen.
Instead, try one of these five homemade cleaning solutions that will quickly do away with any buildup.

Can we use kerosene to clean the kitchen chimney?

No, absolutely not. Kerosene is flammable and can ignite if it comes into contact with any source of heat while you are cleaning. We don’t recommend using kerosene or any other flammable liquid to clean your kitchen chimney. 

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