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Paan, a betel nut leaf with slaked lime, rose petal jam and mouth fresheners like cardamom and cloves, has fascinated South Asians for centuries.

The bricks were then slathered with slaked lime.

Roman concrete consisted of a mixture of a white powder known as slaked lime, small particles and rock fragments called tephra ejected by volcanic eruptions, and water.

She soaks whole kernels with slaked lime, known as cal, overnight.

Workers tread a wooden hamster-wheel attached to pulleys to lift the massive stones high enough to be fitted into walls with mortar made of slaked lime and sand.