Arborio Rice

Published May 1, 2008. From Cook's Illustrated.

Arborio rice makes the best risotto, but does the best Arborio have to come from Italy? And can another rice serve as a substitute for real Arborio rice?

Overview:

The stubby, milky grains of Arborio rice, once grown exclusively in Italy, are valued for their high starch content and the subsequent creaminess they bring to risotto. We conducted two taste tests: one for the best Arborio rice and the second to determine if risotto can be made with a different type of rice.

Varieties of rice are roughly grouped as long grain, medium grain, or short grain according to their cooked length and width. Long-grain rice is about four times as long as it is wide, medium grain is twice as long, and short grain is almost round. The manner in which they cook is largely defined by the ratio of two starches that (in part) constitute rice: amylose and amylopectin. The former does not break down (gelatinize) when heated; the latter does. Rice with a high percentage of amylose, then, is long, firm, and discrete when cooked; rice with a lower percentage (and thus more amylopectin) is shorter and starchy, or "sticky." For comparison's sake, long-grain rice contains between 23 and 26 percent amylose, and… read more

The stubby, milky grains of Arborio rice, once grown exclusively in Italy, are valued for their high starch content and the subsequent creaminess they bring to risotto. We conducted two taste tests: one for the best Arborio rice and the second to determine if risotto can be made with a different type of rice.

Varieties of rice are roughly grouped as long grain, medium grain, or short grain according to their cooked length and width. Long-grain rice is about four times as long as it is wide, medium grain is twice as long, and short grain is almost round. The manner in which they cook is largely defined by the ratio of two starches that (in part) constitute rice: amylose and amylopectin. The former does not break down (gelatinize) when heated; the latter does. Rice with a high percentage of amylose, then, is long, firm, and discrete when cooked; rice with a lower percentage (and thus more amylopectin) is shorter and starchy, or "sticky." For comparison's sake, long-grain rice contains between 23 and 26 percent amylose, and medium-grain rice contains between 18 and 26 percent amylose.

Arborio rice, the classic choice for risotto, contains roughly 19 to 21 percent amylose. However, that is not the only difference. The desirable "bite" in risotto is due to a defect in Arborio rice called chalk. During maturation, the starch structures at the grain's core deform, making for a firm, toothy center when cooked.

To find the best Arborio rice brand, we cooked up batches of Parmesan risotto with two domestically grown brands of Arborio rice and four Italian imports; all brands are widely available in supermarkets. To our surprise, the winning rice hailed not from the boot, but from the Lone Star State.

And if you can't find Arborio rice? We made our Parmesan risotto for this test with four types of rice: standard long grain, converted par-cooked long grain, regular medium grain (we chose Goya brand from the supermarket), and short grain (sushi-style rice). The two long-grained varieties bombed, turning mushy and lacking the creaminess essential to risotto. The par-boiled rice—Uncle Ben's, in this case—also had the jarring, unmistakable flavor of pre-cooked rice. Medium- and short-grain rice fared much better, earning passing grades from most tasters, who agreed that these batches possessed all the creaminess of risotto made with Arborio, though not its al dente bite.

So the long and short of it? If you're in a pinch and can't find Arborio, look for medium- or short-grain rice for an acceptable—but not perfect—batch of risotto. But for the best risotto, choose one of our recommended brands of Arborio rice.

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