Most people think making great coffee is an art. And it is — partly. But behind every perfect cup at Nuroh Cafe in Jaipur, there is a surprising amount of science at work. From the chemistry of extraction to the physics of water temperature, your morning flat white is the result of dozens of variables working in harmony. Understanding even a few of them changes the way you taste and appreciate coffee forever.
It Starts With the Bean
Coffee is a fruit. The beans we roast and brew are actually the seeds of the coffee cherry, a small red or yellow fruit that grows on shrubs in tropical regions. The variety of the plant, the altitude at which it grows, the soil composition, and the rainfall patterns all influence the flavour locked inside each seed. At Nuroh Cafe on Ashok Marg, C Scheme, Jaipur, we source beans from estates that track these variables carefully — because flavour starts in the soil, not in the cup.
Arabica beans contain over 800 volatile aromatic compounds — more than wine. When roasted and brewed correctly, these compounds create the fruity, chocolatey, nutty, and floral notes you taste in a well-made cup. When handled poorly, those same compounds turn bitter or flat.
The Roasting Window
Roasting is where raw green coffee transforms into something drinkable. During roasting, the Maillard reaction — the same chemical process that browns bread and gives grilled meat its flavour — creates hundreds of new flavour compounds. The roaster has to navigate a narrow window:
- Under-roasted: Grassy, sour, underdeveloped flavour.
- Perfectly roasted: Sweet, balanced acidity, complex flavour with a clean finish.
- Over-roasted: Bitter, ashy, flat. The delicate aromatics have been burned away.
At Nuroh Cafe in Jaipur, we work with roasters who understand this balance. Our beans are roasted in small batches and used within weeks of the roast date — because freshness is not a marketing gimmick, it is chemistry.
Water: The Invisible Ingredient
Your cup of coffee is roughly 98 percent water. Water that is too hard over-extracts the coffee and produces harsh, chalky flavours. Water that is too soft under-extracts, leaving you with a weak, sour cup. The Specialty Coffee Association recommends water with a total dissolved solids count between 75 and 250 parts per million. At Nuroh Cafe in C Scheme, Jaipur, our water is filtered to hit this range consistently.
Temperature is equally critical. The ideal brewing temperature sits between 90 and 96 degrees Celsius. Too hot and you scald the grounds. Too cool and the water cannot dissolve enough of the flavour compounds. Our baristas calibrate this for every brew method — espresso, pour over, and cold brew each have their own sweet spot.
Extraction: The Heart of Brewing
Extraction is the process of dissolving flavour compounds from the ground coffee into the water. The target is between 18 and 22 percent — meaning roughly a fifth of the coffee's soluble mass ends up in your cup. Under-extracted coffee tastes sour and thin. Over-extracted coffee tastes bitter and astringent. Hitting the right extraction requires controlling grind size, dose, water volume, time, and temperature simultaneously.
This is why the baristas at Nuroh Cafe pull test shots every morning and adjust the grinder throughout the day. Humidity, bean age, and ambient temperature all shift the variables. It is a constant calibration — and it is what separates a good cafe from a great one.
Why It Matters to You
You do not need a chemistry degree to enjoy great coffee. But knowing that there is real science behind your cup gives you a deeper appreciation for what lands on your table. The next time you sip a perfectly balanced cortado at Nuroh Cafe in Jaipur, know that it is not an accident — it is the result of careful sourcing, precise roasting, clean water, and a barista who obsesses over the details.
Great coffee is not magic. It is science, care, and consistency — and that is exactly what we aim for with every cup.
Visit Nuroh Cafe at 4th Floor, Ashok Marg, C Scheme, Jaipur. Call +91 92144 44360