In an Indian Kitchen, Dal Is Three Whistles, Not Twelve Minutes — Epoche B1
Ask an Indian cook how long to cook toor dal and the answer will be "three whistles", not "twelve minutes". The whistle — the seeti — is the hiss the weight makes when it lifts and lets steam out of the pressure cooker, and in most Indian recipes it is the unit of time. Start with the examples, because that is how the unit is learned: Toor dal, briefly soaked: three whistles. Rice: two, then off the heat. Chana, soaked overnight: five or six. Rajma, the red kidney beans, soaked: rather more, and my grandmother would add one for luck. Why does counting a noise work at all? Because the whistle is not a sound; it is an event. The weight lifts only when the pressure inside reaches the value that weight was made for, and at that pressure the water inside is hotter than boiling — around $120^\circ\mathrm{C}$ in a domestic cooker. Each whistle therefore marks the same physical moment, on any stove, in any pot of that design. The cook is not timing. The cook is counting pressure cycles. And it fails in three places. At altitude the air outside is thinner, so the same weight lifts at a lower true pressure and a lower temperature, and hill towns cook longer. On a fierce flame the pot vents more often without cooking any faster, so the count runs ahead of the food. And a worn rubber gasket leaks, so the pressure never arrives and the whistles never come. What I like about the seeti is what it says about the kitchen it comes from. The timer hangs on the wall in some houses and is ignored. The cook is in the next room, listening, and the pot tells her when it is ready. References McGee, H. (2004). On Food and Cooking: The Science and Lore of the Kitchen (2nd ed.). New York: Scribner. Sen, C. T. (2004). Food Culture in India. Westport, CT: Greenwood Press.