Read time: 7 min | Category: Recipes
Aam ka achar is preservation chemistry dressed up as a recipe. Salt draws water out of the mango, mustard oil seals it from air, and the spices do the rest. Skip a step and you get mould in three weeks. Follow it and the jar lasts years, genuinely improving as it ages. There is no substitute for cold-pressed mustard oil here, because its antimicrobial pungency is doing the preserving.
The Three Rules of Pickle That Keeps
- Everything must be bone dry. Jar, spoon, hands, mangoes. A single drop of water is where mould starts.
- Salt-cure first. The mango pieces must sit in salt and turmeric for 2 to 3 days to draw out moisture before any oil goes in.
- Oil must cover completely. Keep a visible layer of oil above the pickle at all times. Exposed pieces spoil.
Ingredients
Makes about 1 kg pickle
- 1 kg raw green mangoes, firm and sour, such as ramkela
- 100g rock salt or sea salt
- 1 tablespoon turmeric powder
- 400ml Rulife Cold-Pressed Mustard Oil
- 4 tablespoons fennel seeds (saunf), coarsely crushed
- 3 tablespoons mustard seeds (rai), coarsely crushed
- 2 tablespoons fenugreek seeds (methi dana)
- 1 tablespoon nigella seeds (kalonji)
- 2 tablespoons red chilli powder
- 1 teaspoon asafoetida (hing)
How to Make Aam Ka Achar
- Prep the mangoes. Wash, then wipe completely dry and air-dry a few hours. Cut into 1 inch pieces with the shell on, discarding the inner soft seed.
- Salt-cure. Toss the pieces with salt and turmeric in a dry glass or ceramic bowl. Cover with a cloth and leave in the sun or a warm dry place for 2 to 3 days, stirring once daily with a dry spoon. Water will collect, so drain it off and keep it.
- Dry the pieces. Spread the drained mango in the sun for 4 to 6 hours until the surfaces are dry to the touch.
- Roast and crush the spices. Dry-roast the fenugreek and mustard seeds lightly until aromatic, cool, and crush coarsely with the fennel. Do not powder them.
- Heat the oil. Bring the mustard oil to smoking point, then take it off the heat and cool it completely. This removes the raw bite and any moisture. Never add unheated oil.
- Mix. Combine mango pieces, all the spices, chilli powder and hing. Add about two-thirds of the cooled oil and mix thoroughly.
- Jar it. Pack into a dry sterilised glass or ceramic jar. Pour the remaining oil over so it sits a good centimetre above the pickle.
- Mature. Cover the mouth with muslin and keep in the sun for 7 to 10 days, shaking daily. Then seal and store. It is ready in about 3 weeks and best after 2 months.
Tips
- Use sour, firm mangoes. Ramkela, totapuri or any hard raw mango. Sweet or slightly ripe mangoes turn mushy and ferment.
- Ceramic or glass only. Metal reacts with the salt and acid and taints the pickle.
- Always a dry spoon. Every single time you serve from it. This is the most common way a good pickle dies.
- Top up the oil. As you eat through the jar, add more heated-and-cooled mustard oil to keep the layer.
- Mould appeared? Discard the batch. Do not try to scoop it out.
Why Cold-Pressed Mustard Oil
Rulife Cold-Pressed Mustard Oil is kachi ghani, extracted without heat, which preserves the allyl isothiocyanate compounds responsible for both its sharp pungency and its natural antimicrobial action. That is precisely why generations of Indian households pickle in mustard oil rather than refined oil: refining strips those compounds out, and with them most of the preserving power and all of the flavour.
Nutrition Notes
Pickle is high in sodium by design, because salt is the preservative. Eat it as a condiment in small amounts, particularly if you are watching blood pressure. Mustard oil is high in monounsaturated fats and omega-3 ALA (Healthline). This article is general information, not medical advice.
Frequently Asked Questions
Why did my mango pickle go mouldy?
Moisture. Either the mangoes were not fully dried, a wet spoon was used, or the oil layer did not cover the pickle. All three are avoidable.
Do I have to keep the pickle in the sun?
It helps a great deal, because sunlight drives off residual moisture and speeds maturation. If you have no sun, keep it in the warmest dry spot and allow longer to mature.
Why heat the mustard oil first?
Heating to smoking point removes the raw sharpness and any trace moisture. Always cool it fully before adding, or it will cook the mango.
How long does aam ka achar last?
Properly made and kept under oil with a dry spoon, one to two years at room temperature. The flavour deepens with age.
Can I use a different oil?
For a North Indian aam ka achar, no. Mustard oil provides the flavour profile and the antimicrobial protection. Sesame oil is used in some South Indian pickles instead.
When is the right season to make it?
Peak raw mango season, roughly April to June in most of India, when mangoes are hard and sour and there is reliable sun.
Make It with Rulife
👉 Rulife Cold-Pressed Mustard Oil: kachi ghani, pungent, the traditional pickling oil
Want to understand the extraction? Read what is cold-pressed oil.
