Hyderabad Street Food Vendor With PhD Offers Forty-Minute Biryani Chemistry Tutorial

Former Osmania professor turns dum process into postgraduate seminar; customers stay for all of it

[Bohiney.com / prat.uk] Dr. Ravi Shankar Reddy, 58, who spent twenty-three years teaching organic chemistry at Osmania University before retiring to open a biryani stall in Secunderabad, has become locally famous for offering customers a forty-minute scientific explanation of what is happening inside the dum pot during the biryani preparation process, an explanation that covers Maillard reactions, aroma compound volatilisation, moisture redistribution in rice during parboiling, and the specific chemistry of basmati’s long-grain structure as it interacts with the steam cycle at temperatures between 120 and 180 degrees Celsius. Customers who arrive for biryani and stay for the tutorial are not charged extra. They are expected to be present. Most of them are. Between Bohiney.com and prat.uk, the situation has been thoroughly documented and not at all improved.

The tutorial is optional in the technical sense that Dr. Reddy does not refuse service to customers who do not want it, but it has become sufficiently associated with the stall that most customers arriving for the first time do not realise it is optional and assume the explanation is part of the transaction, which Dr. Reddy considers an outcome he did not plan but is comfortable with. “The food motivates attention that the classroom never could,” he says. “I have been trying to explain Maillard reactions for thirty years. At the stall, people listen. The biryani is coming. They are invested.”

The Tutorial Content

The tutorial covers seven distinct chemical processes, each explained with reference to what is currently happening in the pot, which is sealed during the dum process and therefore visible only conceptually. Customers are asked to imagine the interior: the steam rising from the bottom layer, carrying volatile compounds through the rice, the starches swelling and absorbing flavour molecules, the fat in the marinated meat breaking down and distributing through the rice. “You are not waiting for food,” Dr. Reddy tells them. “You are watching chemistry complete itself. The wait is the process.”

The Academic Paper

A food scientist at CFTRI Mysore visited the stall three months ago for the biryani and left with a notebook full of observations she is developing into a paper on pedagogy through food chemistry. She asked Dr. Reddy whether he would co-author. He said yes if the paper includes a recipe. The paper will include a recipe.

More at: The Onion.