How to Measure Canned Legumes When Replacing Dried Legumes in a Recipe

Canned legumes and dried legumes are two different forms of the same ingredient, and a recipe does not use them interchangeably by simply swapping one for the other. When you weigh dried chickpeas, you are measuring only the beans; chickpeas in a can have already absorbed water, expanded, and become heavier. That is why the same number refers to two different amounts in these two forms. Use the form specified for the measurement, and if the recipe does not say which one, look for a descriptor in the ingredient list; if there is none, assume the dry form. Before switching between the two forms, first clarify which one the recipe calls for.

The first step is to drain and rinse. The liquid in the can is not just water; it contains salt and starch dissolved from the beans, so it is thick and cloudy. A brief rinse under running water in a strainer removes most of this liquid. After rinsing, shake the beans and let them sit in the strainer for a while, because water left on them is counted directly on the scale. Wet beans appear heavier than they are, throwing off the measurement from the start. Rinsing also removes the softened outer layer of the beans and reduces how much they break apart in the dish.

The second step is weighing, and the direction matters here. If the recipe calls for cooked legumes, it is straightforward: weigh the drained beans and bring them to the required weight. If the recipe gives a dry weight, look at the logic of the recipe rather than searching for a direct multiplier; because the dry weight is meant to be used after cooking, what matters is how much space the cooked legumes occupy in that recipe. If you are unsure, adding a little at first and then adding more during cooking is safer than adding too much and trying to remove it. You can always add more legumes; excess can only be transferred to another dish.

The third step is shortening the recipe itself. When you use canned legumes, omit the soaking and long-boiling steps entirely; the beans are already tender. This is not just a matter of shortening the cooking time; it also changes the order. In a dish made with dried legumes, the beans cook for a long time and absorb flavor; canned beans are added later and are expected to absorb flavor quickly. For this reason, cook the spices and sauce on their own for a while before adding the beans. If the beans are boiled for a long time after they are added, they break apart and make the dish cloudy.

The last step is salt, and it is the step most often overlooked. Because the liquid in the can is salty, some salt remains on the beans even after rinsing, and it adds to the total salt in the dish. If you add all the salt specified in the recipe, the dish will taste salty. The right approach is to add some of the salt first, then taste near the end and adjust. Take even more care with canned products that are seasoned or packed in sauce, because they carry flavor as well as salt and can throw off the recipe’s balance.