Betel Chewing Preparation (000012)
Thailand Buriram Province (Mar 1992)
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Photograph by V.C. Childress

A woman spreads slaked lime on to a betel leaf with a spatula. She grinds lime chalk (calcium carbonate), obtained from a mountainous area of Thailand, in to a powder (calcium oxide) and mixes it with water to a paste-like consistency (calcium hydroxide).