Aam Ka Achaar Recipe: Grandmother's Method That Lasts 6 Months
Every Indian grandmother has an aam ka achaar recipe. It is never written down. It lives in muscle memory. A pinch of this. A handful of that. Sun it for “enough” days.
By Saran Reddy, Founder — InstaCuppa | Last updated: 29 September 2026
This recipe puts that knowledge on paper. With exact measurements. Step-by-step instructions. And the storage science that makes it last 6 months or more.
This is the traditional Punjabi-style aam ka achaar. Raw mangoes. Mustard oil. And spices roasted in the sun. The way it has been made for generations.
How Many Days Does Aam Ka Achaar Take to Get Ready?
Aam ka achaar is a raw mango pickle cured with salt, spices and mustard oil. With this recipe, it is ready to eat in about 1 week. You spend 1 day on prep. Then the jar sits in the sun for 5 to 7 days. The full taste comes after 3 to 4 weeks.
Salt for 1 kg of mango: this recipe uses 100 grams of salt for 1 kg of raw mango. That is 10% of the mango weight. Do not use less. Some older recipes use more. A Tamil Nadu Agricultural University (TNAU) mango pickle recipe uses 200 grams of salt for 1 kg of peeled mango. More salt keeps the pickle safer in a humid home.
Best month: March to May. Raw mangoes are in season, and the sun is strong.
हिंदी में: आम का अचार कितने दिन में बनता है? धूप में 5 से 7 दिन रखने के बाद अचार खाने लायक हो जाता है। पूरा स्वाद 3 से 4 हफ्ते में आता है। 1 किलो कच्चे आम में कम से कम 100 ग्राम नमक डालें।
Hinglish: Aam ka achar kis mahine mein dalna chahiye? March se May tak. Achar ko kitne din dhoop mein rakhna chahiye? 5 se 7 din.
| Stage | Time | What happens |
|---|---|---|
| Day 1: prep | About 8 hours | Wash and dry the mangoes (2–3 hours), cut them, sun-dry the pieces (4–6 hours), mix with masala and oil |
| Sun cure | 5–7 days | The jar sits in the sun. Stir once a day. |
| Ready to eat | About 1 week | The mango is still firm and sharp |
| Full taste | 3–4 weeks | The mango softens and the masala soaks in |
What You Need
Ingredients (Makes About 1 kg of Pickle)
- Raw green mangoes: 1 kg (firm, sour, no soft spots)
- Mustard oil: 250 ml (cold-pressed, kachi ghani)
- Salt: 100 gm (rock salt or sendha namak is best)
- Turmeric powder: 2 tablespoons
- Red chilli powder: 3 tablespoons (Kashmiri for colour, regular for heat)
- Mustard seeds (rai): 3 tablespoons
- Fenugreek seeds (methi dana): 2 tablespoons
- Fennel seeds (saunf): 2 tablespoons
- Nigella seeds (kalonji): 1 tablespoon
- Asafoetida (hing): 1 teaspoon
Equipment Needed
- Clean, dry glass jar (1.5–2 litre capacity)
- Clean muslin cloth or cotton towel
- Dry cutting board and knife
- Dry spice grinder or mortar-pestle
- Dry mixing bowl (steel or glass, not plastic)
Step-by-Step Recipe
1 Choose the right mangoes. Pick raw, green, firm mangoes. They should be sour and hard. No soft spots. No ripe smell. The best varieties for achaar are Rajapuri, Totapuri, and local desi kairi. Season: March to May.
2 Wash and dry the mangoes. Wash under running water. Wipe with a clean towel. Let them air dry for 2–3 hours. There should be zero moisture on the surface. This is critical.
3 Cut into pieces. Cut the mangoes into medium-sized pieces. Keep the skin on. Remove the seed. Each piece should be about 2–3 cm. Use a dry knife on a dry cutting board.
4 Sun-dry the mango pieces. Spread the cut pieces on a clean cloth or steel plate. Place in direct sunlight for 4–6 hours. Cover with a thin muslin cloth to keep flies away. Do NOT cover with a lid — moisture needs to escape. This step removes excess water from the mangoes.
5 Prepare the spice mix (masala). Dry roast mustard seeds, fenugreek seeds, fennel seeds, and nigella seeds on low heat for 2–3 minutes. Let them cool fully. Grind coarsely in a dry grinder. Do not make a fine powder — coarse texture is traditional. Add turmeric, chilli powder, hing, and salt. Mix well.
6 Mix mangoes with masala. In a large, dry bowl, combine the sun-dried mango pieces with the spice mix. Use clean, dry hands or a dry spoon. Toss until every piece is well coated.
7 Heat the mustard oil. Heat the oil in a pan until it reaches smoking point. This removes the raw, pungent taste of mustard oil. It is done for taste. Turn off the heat. Let it cool to room temperature. Never add hot oil to the mangoes — it will cook them.
8 Combine oil and pickle. Pour the cooled oil over the mango-masala mixture. Mix thoroughly. Every piece must be coated in oil. The oil keeps air and water away from the mango.
9 Transfer to a sterilized glass jar. Pack the pickle into the jar. Press down gently. Pour extra oil on top so it forms a layer at least 1 cm thick. This oil seal is what keeps air and moisture out.
10 Sun cure for 5–7 days. Keep the sealed jar in sunlight for 5–7 days. Shake or stir once daily. Sunlight helps the masala penetrate the mango. It also warms the oil, which speeds up the curing process.
Why Salt, Sour Mango and Oil Keep Achaar Safe
Salt pulls water out of the mango. Less water means fewer germs and less fungus. The oil layer on top keeps out air and water. The US National Center for Home Food Preservation (NCHFP) notes that oil over a food also shuts out air. The botulism germ likes food with no air. But it needs moist, low-acid food to grow. The NCHFP lists fruits and pickles as acid foods, with a pH of 4.6 or lower. Sour raw mango is an acid fruit, and this recipe adds a lot of salt. That is why this kind of achaar is low risk. Do not add low-acid extras such as garlic cloves to this recipe without a tested method. Throw the pickle away if it smells bad, fizzes, or has fuzzy mould.
Common Mistakes (And How to Avoid Them)
| Mistake | What Goes Wrong | How to Fix |
|---|---|---|
| Using wet mangoes | Fungus grows within days | Always sun-dry for 4–6 hours |
| Not enough salt | Pickle spoils quickly | Use at least 100 g salt per 1 kg mango (10% by weight) |
| Not enough oil | Mold on top | All pieces must be submerged in oil |
| Using raw (unheated) oil | Strong, sharp raw taste | Heat oil to smoking point, then cool it fully |
| Plastic container | Oil leaks, turmeric stains, lids warp and let air in | Use glass jars only |
| Wet spoon in jar | Fungus within a week | Always use a dry spoon. Keep a dedicated one. |
| Covering during sun-drying | Moisture trapped, no curing | Use muslin cloth, not a tight lid |
How Long Does Aam Ka Achaar Last?
These times are typical home results, not lab tests. How long your achaar lasts depends on salt, oil, a dry jar and a dry spoon.
| Storage Method | Shelf Life | Conditions |
|---|---|---|
| Glass jar, room temperature | 6–12 months | Cool, dry place, oil layer on top |
| Fridge | 12+ months | Oil may solidify but that is normal |
| Poor storage (plastic, wet spoons) | Can spoil in 2–3 weeks | Fungus likely |
Glass Jar vs Plastic for Achaar Storage
| Feature | Glass Jar | Plastic Container |
|---|---|---|
| Reacts with salt, acid or oil? | No | Holds oil smells over time |
| Staining | Easy to clean | Permanent turmeric yellow |
| Oil leaking | Rare (good seal) | Common (lids warp) |
| Airtight seal | Excellent | Degrades over months |
| Shelf life of pickle | 6–12 months | Shorter once the lid lets in air |
Regional Variations
Every state in India has its own style:
- Punjabi style: Heavy mustard oil, coarsely ground spices, sun-cured. This is the recipe above.
- Gujarati style: Sweeter, uses jaggery and less oil. Lighter in spice.
- South Indian (avakaya): Uses groundnut oil instead of mustard oil. More chilli, less fennel.
- Rajasthani style: Extra sour mangoes, heavy on red chilli and mustard.
- Bengali style: Panch phoron (five-spice blend), lighter on oil.
All styles follow the same science: salt draws out moisture. Oil seals out air. Spices add flavour and some act as natural preservatives.
P.S. — The Right Jar for Your Achaar
Keep the achaar itself in a clean glass jar with a tight lid. Glass does not stain or hold smells. For the dry whole spices you save for the next batch, the InstaCuppa Airtight Container (Rs 1,999 on 29 September 2026) has a silicone seal and a clamp lid. It is made for dry foods such as coffee, tea and sugar. Its date dial helps you remember when you filled it.
For the mustard oil you use to top up the jar, the InstaCuppa Glass Oil Dispenser, 500 ml (Rs 699 on 29 September 2026) lets you see the oil level and pour a measured amount.
Frequently Asked Questions
How many days does aam ka achaar take to be ready?
About 1 week. You prep on day 1, then keep the jar in the sun for 5 to 7 days. It is ready to eat after that. The full taste comes after 3 to 4 weeks. In Hindi: धूप में 5 से 7 दिन, पूरा स्वाद 3 से 4 हफ्ते में।
How much salt for 1 kg of mango pickle?
This recipe uses 100 grams of salt for 1 kg of raw mango. That is 10% of the mango weight. Some older recipes use up to 200 grams per kg. Use more salt if your home is humid or you want the pickle to keep longer. In Hindi: 1 किलो आम में कम से कम 100 ग्राम नमक।
How long does homemade aam ka achaar last?
In a clean glass jar with enough oil and salt, aam ka achaar usually lasts 6–12 months at room temperature. In the fridge, it can last over a year. These are typical home results, not lab tests. The key is using dry spoons and keeping the pickle submerged in oil.
Which mangoes are best for achaar?
Use raw, green, firm, sour mangoes. Rajapuri, Totapuri, and local desi kairi work best. The mango should have no soft spots and no ripe smell. Season is March to May in India.
Why does my achaar get fungus?
The most common cause is moisture. Wet mangoes, wet spoons, or a jar that was not dried properly all introduce water. Water feeds fungus. Dry everything thoroughly. Keep pickle submerged in oil.
Can I skip the sun-drying step?
It is not recommended. Sun-drying removes moisture from the mango pieces, which prevents fungus. It also helps spices cure properly. If you cannot sun-dry, air-dry indoors for 8–10 hours near a fan.
How much salt to use in mango pickle?
Use at least 10% salt by weight of the mangoes. For 1 kg of mangoes, use at least 100 gm of salt. Rock salt (sendha namak) is preferred. Too little salt causes quick spoilage. Too much makes it too salty.
Why is mustard oil heated to smoking point?
Heating removes the raw, pungent taste of mustard oil. It is done for taste. The oil keeps the pickle safe by keeping air and water out, not by being heated. Always let the oil cool to room temperature before adding to the pickle. Hot oil will cook the mango pieces.
Can I store achaar in plastic containers?
It is not recommended. Plastic stains permanently from turmeric and can hold oil smells. Many plastic lids warp over months and let air in. Glass does not react with salt, acid or oil. Glass jars with airtight lids are the safest choice for long-term pickle storage.
When is the best time to make mango pickle?
March to May, when raw mangoes are in season and there is strong sunlight for sun-drying and curing. Making achaar in monsoon season is risky because humidity causes spoilage.
Sources
Saran Reddy
Founder, InstaCuppa
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