Thonmai
The first time you pour wood-pressed groundnut oil into a hot kadai, you will notice it before you taste it. There is a warm, nutty smell that rises with the first crackle of mustard seeds - the kind you might remember from an older kitchen, before refined oils became the quiet default. That smell is exactly what people worry about when they switch: will my sambar, my dosa, my everyday poriyal suddenly taste like something else? The honest answer is that it can, if you swap carelessly. Done with a little thought, most dishes taste the same, or better, and you barely register the change.
Understand what you are actually replacing
Refined oil is engineered to be neutral. It is bleached, deodorised and stripped of the parent seed's character so that one bottle behaves like any other. Wood-pressed oil is the opposite - it keeps the flavour and aroma of what it was pressed from. So substitution is not one-to-one on personality, even when it is one-to-one on quantity. The trick is to match the oil to the dish so its natural character either disappears into the food or genuinely improves it.
Match the oil to the region of the recipe
Most Indian dishes already have an oil they were born with, and following that logic makes the swap almost invisible.
Groundnut oil - the safest all-rounder for South Indian tempering, poriyal, sambar, rasam and most Andhra and Tamil cooking. Its mild nuttiness sits comfortably where refined oil used to be.
Sesame (gingelly) oil - already the traditional choice for pickles, vatha kuzhambu, kara kuzhambu and idli podi. If your recipe leans Tamil and tangy, this is not a substitute, it is a homecoming.
Coconut oil - built for Kerala and coastal dishes - avial, thoran, fish curry, and anything already fragrant with curry leaves and coconut.
Keep the quantity the same, adjust the timing
Use the same measure your recipe already asks for. A tablespoon stays a tablespoon. What changes slightly is how you treat the oil. Wood-pressed oils carry more of their natural compounds, so heat them on a medium flame and let the tempering do its work rather than blasting the oil to smoking point. This protects the flavour and keeps the oil from turning bitter - which is often what people mistake for a "strong" taste.
Where the taste can shift, and how to hide it
The dishes most likely to reveal the oil are the plainest ones - a simple stir-fry, a light upma, or anything with very few spices. Here, the oil's own aroma has nowhere to hide. If you want the change to be seamless, use groundnut oil for these neutral dishes and save the more assertive coconut or sesame for recipes that already carry bold flavour. A good rule: the more masala a dish has, the freer you are to use any wood-pressed oil.
Frying, deep and shallow
For bhaji, bonda, murukku and vada, groundnut oil is the workhorse. It handles repeated heat well and lends a clean, familiar taste to fried snacks. Sesame oil suits shallow-frying and seasoning where its flavour is wanted. Coconut oil fries beautifully for coastal snacks but announces itself, so use it where that is welcome.
Give your palate a week
The biggest change is not in the food but in your expectation of it. After years of neutral oil, a little aroma reads as "different" simply because it is unfamiliar. Cook your regular dishes for about a week and the smell of tempering starts to feel normal, then right, then missed when it is absent. Most households stop noticing the swap entirely within a few meals. If you are unsure which oil to begin with for your usual cooking, you can look through our range of wood-pressed oils and start with groundnut for the widest, gentlest fit.
One point worth being precise about: "wood-pressed" and "marachekku" describe a pressing method - oil extracted slowly using a wooden or wood-lined press - not a regulated grade or a certification. It is a description of how the oil is made, and the flavour it keeps is simply a consequence of that process, not a health claim. Treat the switch as a return to the taste these recipes were originally cooked in, and let your own kitchen be the test.