Make sure that your clothes, skin and work surface are protected. Wear protective gloves and protective face mask while working with the concrete.
Place a metal fish on the table upside down and baste the surface with cooking oil.
Mix the concrete according to the pack instructions.
Cover the underside of the dish with a layer of concrete, about two centimetres thick. Work from the centre of the dish outwards. Pat the concrete to spread it and smooth the surface.
Leave the cast to set for a few days. Turn the concrete cast over, lifting away the metal dish.
Make the nicest dish for your garden, balcony or window sill! Use a metal tray with nice details as a mould for casting a sturdy stoneware dish for indoor or outdoor use. The raw surface of the concrete is appealing in all its simplicity and weather-resistant. For even more weatherproofing, seal your concrete dish with Colour Fix. Apply this sealant using a paintbrush, roller or sponge.
NOTE: It's best to mix concrete outdoors because of the dust it gives off. Find a shady spot out of direct sunlight so the concrete doesn't try too fast and crack.