How to Clean Brass Utensils at Home: 4 Traditional Indian Methods

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A quick note: InstaCuppa does not sell brass ware or brass cleaners, so those links go to Amazon search pages. We do sell the small cleaning brush shown below.

Brass is part of many Indian homes, from the pooja thali to the water lota. It looks warm and golden when clean, but it slowly turns dull and dark.

You do not need costly polish for most pieces. A few kitchen items, used the right way, bring the shine back.

This guide is part of our kitchen organisation series for Indian homes.

पीतल के बर्तन कैसे साफ करें? (Pital Ke Bartan Kaise Saaf Karen)

Quick answer: Pital ke bartan saaf karne ka gharelu upay is simple. Rub on tamarind (imli) and salt, or lemon (nimbu) and salt. Then wash with clean water and dry at once.

• इमली और नमक का पेस्ट बनाकर पीतल पर रगड़ें।
• या नींबू के रस और नमक से रगड़ें।
• ज़्यादा काला पीतल हो तो नमक, सिरका और आटे का पेस्ट लगाएं।
• फिर साफ पानी से अच्छी तरह धोएं।
• तुरंत सूखे कपड़े से पोंछें।
• अंदर कलई न हो तो पीतल के बर्तन में खट्टा खाना न रखें।
• பித்தளை பாத்திரம் சுத்தம் செய்வது எப்படி: புளி மற்றும் உப்பு கொண்டு தேய்த்து, நன்றாக கழுவி, உடனே துடைக்கவும்.

Why Does Brass Turn Dark or Green?

Quick answer: Brass is a mix of copper and zinc. Air and moisture slowly form a thin oxide layer on the copper, which looks dull and dark. Green patches are copper carbonates or verdigris.

The Copper Development Association puts it simply. It says "Brasses are copper zinc alloys" in its guide.

The mix sets the colour, which runs "from golden yellow to red" as the zinc share changes.

A museum metals handout explains the dark look. It says a layer of oxide usually forms, "giving them a dull, dark appearance."

• Dark brown or black: copper oxides and other tarnish on the surface.
• Pale green or blue: the handout says "pale green and/or blue copper carbonates may be formed" with acids, or moisture and carbon dioxide.
• Green and waxy: oils and fats can form "verdigris, a bright green waxy substance." That is common on a diya.

The WA Museum conservation manual adds that these layers are "generally stable and protect the underlying metal" from more corrosion. So tarnish is a looks problem, not a sign the brass is ruined.

Before You Start: Check for Lacquer and Kalai

Quick answer: First wash the piece in warm, soapy water. Then check two things: is it lacquered, and is the inside lined with tin (kalai)? Both change how you should clean it.

1. Wash first: University of Tennessee Extension says to "Wash the object in warm, soapy water." This lifts oil and dust, so the cleaner reaches the tarnish.
2. Look for lacquer: some decorative brass has a clear coat. The WA Museum warns that lacquers "can be damaged easily by scratching or improper cleaning." Just wipe lacquered brass with mild soap and water.
3. Look for kalai: a silver-grey tin lining inside a cooking pot or plate is kalai. Do not scrub it hard with salt, as it is the layer that keeps food off the brass.

Method 1: Tamarind + Salt (Traditional Favourite)

Quick answer: Rub a paste of tamarind pulp and salt onto the brass with a soft cloth. Then rinse very well and dry. This is the classic Indian method for both brass and copper.

Tamarind is not just a kitchen habit. A review of tamarind uses notes its use "for cleansing and brightening brass and copper vessels."

Why does it work? The same review says the pulp holds "organic acids, such as tartaric acid." Mild acids help lift the dark oxide layer.

You need: a small ball of tamarind pulp, a little salt and a soft cloth.

1. Soak the tamarind in a little warm water and squeeze out a thick pulp.
2. Mix in a pinch of salt.
3. Rub the paste on the brass in small circles with a soft cloth.
4. Rinse very well with clean water, then dry at once.

Best for: plates, glasses, a lota and daily pooja items. For copper, see our copper vessel cleaning guide.

Method 2: Lemon + Salt

Quick answer: Dip half a lemon in salt and rub it over the brass, then rinse and dry. University of Tennessee Extension lists lemon juice and salt for hard stains on brass.

The University of Tennessee Extension sheet says: "For hard to remove stains on brass or copper, rub with salt and vinegar or lemon juice."

1. Cut a lemon in half and dip the cut side in salt.
2. Rub it over the tarnished area, pressing lightly.
3. Rinse with plenty of clean water.
4. Dry with a soft cloth and buff.

Best for: stubborn spots on a plain plate or tumbler. Older guides mix lemon with baking soda, but we could not find a trusted source for that, so we left it out.

Method 3: Salt + Vinegar + Flour Paste

Quick answer: Mix equal parts of salt, vinegar and flour (atta or maida) into a paste. Rub it on with a soft cloth, rinse and buff dry. The flour makes the paste stick to curved pieces.

This one comes straight from University of Tennessee Extension. It says slightly tarnished metals can be cleaned with "equal parts of salt, vinegar and flour."

Its steps are short: "Rub on with a soft cloth, rinse and buff."

1. Mix one spoon each of salt, white vinegar and flour.
2. Spread a thin coat over the brass.
3. Rub gently with a soft cloth.
4. Rinse well, then dry and buff.

Best for: a lota or a carved bowl, where a runny liquid would drip off.

Method 4: Curd / Buttermilk Soak (Gentlest)

Quick answer: Cover the brass in curd or buttermilk, leave it to soak, then rub gently, rinse and dry. It is the mildest acid of the four, so it suits fine carving but may need a second round.

Buttermilk is only mildly sour. A study in the Indian Journal of Dairy Science puts it at about "1.2% lactic acid."

That low acid level is the point. You can use it on pieces you are nervous about, and step up to tamarind if it is too slow.

1. Place the brass item in a bowl.
2. Cover it fully with curd or buttermilk.
3. Leave it to soak, checking now and then.
4. Rub gently with a soft cloth, rinse well and dry.

Best for: carved idols, a bell or small pooja pieces with fine patterns.

Comparison: Which Method Should You Use?

Quick answer: Use tamarind and salt for regular cleaning, lemon and salt for stubborn spots, and the vinegar paste for curved pieces. Use curd or buttermilk for delicate carving.

How Do You Clean Black (Kala) Brass?

Quick answer: For black brass, wash it first, then use tamarind and salt and repeat if needed. For the hardest stains, rub with salt and vinegar or lemon juice. Rinse well each time.

Very dark brass has a thick tarnish layer, so it takes more rounds. Work in short rounds, and rinse between them.

Do not leave strong acid on for long. The WA Museum warns: "Heating and acidic cleaning solutions can etch the zinc from brasses, leaving a copper-red discolouration on the surface."

• Round 1: wash in warm, soapy water to lift oil and soot.
• Round 2: tamarind and salt, then rinse.
• Round 3: salt with vinegar or lemon juice on the spots that stay dark, then rinse.
• Still dark? Try a store-bought brass powder, or ask a local polisher.

If a brass pot is burnt on the inside, food may be stuck to it. Our burnt vessel guide covers that first step.

How to Clean a Brass Lota, Thali and Pooja Items

Quick answer: Clean a thali flat on the counter, a lota with a paste you can reach inside, and carved pooja items with a soft brush. Wash oily diyas in warm, soapy water first.

For carving, the WA Museum uses "a soft bristle brush, such as a toothbrush" on copper alloys.

Setting up a pooja corner? See our guide to an aroma diffuser for the pooja room.

Scrub carved pieces with less wrist work

Use the sponge head, which is made for delicate surfaces, with your cleaning paste. Skip it on lacquered brass, and rinse the piece well after.

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Store-Bought Brass Cleaners (Like Pitambari)

Quick answer: A brass powder like Pitambari is a quick option. Its maker says to wet the item, clean it with the powder, then wash well and wipe dry. Always rinse off every trace of polish.

The Pitambari product page lists brass among the metals the powder cleans. Its steps start with "Wet the article." and end with "Wash it well & Wipe it to dry".

Rinsing matters with any polish. University of Tennessee Extension warns: "Any polish left on the object can cause the object to tarnish again quicker."

You can find brass and copper cleaning powder on Amazon.

Is It Safe to Cook or Eat in Brass Utensils?

Quick answer: Brass that touches sour or acidic food should have an intact tin lining (kalai). FSSAI training material says copper and brass utensils must have a proper lining. Do not store pickles or sour food in bare brass.

The FSSAI FoSTaC catering manual is clear: "Copper and brass utensils must have a proper lining."

The reason is old knowledge in India. An INTACH history of kalai says "Copper and brass vessels are subject to chemical action caused by sour or acid food placed in them."

It adds that this action "is lessened, if not prevented, by the tin-coating applied to the vessels." That tin coating is kalai, done by a kalaiwala.

• Pickles: Clemson Extension says "Do not use aluminum, copper, brass, galvanized, or iron containers for fermenting pickles or sauerkraut."
• Why it matters: Clemson's cookware safety sheet notes that "some foods are capable of dissolving metals."
• Worn kalai: if the brass shows through the lining, get it re-tinned before you cook in it.

Cooking in aluminium instead? Our aluminium vessel guide covers that metal.

How to Keep Brass Shiny Longer

Quick answer: Dry brass right after every wash, and wipe it with a dry cloth now and then. Do not polish too often, as repeated polishing wears the metal. Rinse off every trace of cleaner.

• Dry at once: moisture helps green copper carbonates form, so do not let brass air-dry.
• Wipe often: the WA Museum says "Use a dry cloth to wipe copper-based objects that are in good condition."
• Do not over-polish: it warns "Avoid repeated polishing however as it tends to wear the metal surface."
• Rinse off salt: the manual says protective layers "tend to break down in the presence of chlorides." Salt is a chloride, so wash it all off.
• Decor only: University of Tennessee Extension says "To keep indoor brass bright, rub with lemon oil." Use this on decor, not on plates or glasses you eat from.

For a soft polishing cloth, any lint-free microfibre cloth works well for the final buff.

Common Brass Cleaning Mistakes

Quick answer: Most mistakes come from too much acid or too little rinsing. Others are scrubbing lacquered brass, polishing too often and keeping sour food in unlined brass.

1. Leaving acid on too long: it can pull zinc out and leave pinkish patches.
2. Skipping the rinse: salt and polish left behind bring the tarnish back faster.
3. Scrubbing lacquer: it scratches and peels the clear coat.
4. Using harsh scrubbers: stick to a soft cloth or a soft brush.
5. Sour food in bare brass: keep curd, pickles and tamarind dishes in lined or steel vessels.

Small brass jewellery is a different job. Our ultrasonic cleaner guide covers small pieces like that.

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