Office and Craft Room Room Type 4. Cast the Mold: Before filling the mold, Mamadou uses two vessels to decant the concrete to help eliminate large air bubbles, then lets it sit until the remaining bubbles rise to the  surface. Then he slowly pours the mixture into the mold.  Photos from See How Artisans in the Italian Alps Make This High-Design Concrete Lamp

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4. Cast the Mold: Before filling the mold, Mamadou uses two vessels to decant the concrete to help eliminate large air bubbles, then lets it sit until the remaining bubbles rise to the surface. Then he slowly pours the mixture into the mold.