Achar is a memory in almost every Indian home. A jar kept in the sun, the strong smell of mustard oil and spices in the kitchen, a grandmother turning the jar daily and saying, “it will be ready in ten days.”
Achar is not just food. It is tradition, patience and simple science in a jar.
And at the centre of every good achar is cold-pressed mustard oil.
Not refined oil. Not any other oil. Mustard oil.
And there are clear scientific reasons for this.
Why Mustard Oil Is the Right Oil for Achar
1. It Has Natural Antimicrobial Properties
Cold-pressed mustard oil contains a compound called allyl isothiocyanate. This is what gives it its strong, sharp smell. This compound has antibacterial and antifungal properties.
When you soak mango or other ingredients in mustard oil, it creates an environment that slows down the growth of bacteria and fungi. This helps the achar last for years without refrigeration. No other common cooking oil does this as effectively.
2. Cold-Pressed Matters, Not Just Any Mustard Oil
Mustard oil comes in two types:
- Cold-pressed (kachi ghani)
- Refined/processed
This difference is very important for achar.
Cold-pressed mustard oil keeps all its natural compounds, the sharpness, the antioxidants and the preservative qualities.
Refined mustard oil is processed with heat and chemicals. This removes many of these natural properties.
So while refined oil may work for regular cooking, it does not work well for achar. The very qualities that make mustard oil perfect for achar are lost in refining.
3. The Strong Flavour Is Actually a Good Thing
Many people worry about the strong smell of mustard oil. But that strong smell means the oil is working properly. As the achar sits in the sun over days and weeks:
- The sharpness reduces
- The oil absorbs spices
- The ingredients release moisture
Over time, this creates a deep, balanced, rich flavour. The strong smell you notice in the beginning fades away. What remains is the real taste of homemade achar.
Tips for Perfect Achar Every Time
- Always heat and cool the mustard oil before adding it. This reduces the raw smell and improves preservation.
- Make sure there is always a layer of oil on top of the achar. This protects it from air and spoilage.
- Never use a wet spoon. Moisture is the most common reason achar spoils.
- Keep the jar in the sun for 2–3 hours daily. Sunlight helps the achar develop properly.
- Use rock salt or sea salt. Avoid iodised salt, as it can affect fermentation.
Ajanta Cold-Pressed Mustard Oil is made from quality mustard seeds, slow-pressed to retain its full character : the pungency, the natural compounds, the preservative properties that make a genuine kachi ghani oil different from everything else on the shelf.
Your grandmother’s achar tasted the way it did for a reason. This is the reason.
Shop at https://ajantasoya.com/shop/product/anchal-kachi-ghani-mustard-oil/