Three stones arranged in a triangle. Firewood stacked in the middle. A flame coaxed to life with scraps of paper or dry leaves. It is the most familiar kitchen scene in many Ghanaian homes. Low-cost and widely used, the traditional open cookstove has fed families for generations. But for anyone who has cooked on it, the experience is also familiar — coughing fits, watery eyes, stepping outside repeatedly to escape the heat and smoke. What looks simple and harmless has become one of Ghana’s most overlooked public health threats.