Cast Iron Tea Bowl Price: £6.99 A lovely cast iron tea drinking bowl 100ml in matt black Helps tea stay hotter for longer! Cast Iron Tea Cup Care Instructions Proper care of a cast iron tea cup will afford you a lifetime of use. After each use, allow tea cup to cool completely before cleaning. Rinse and gently clean pot, cover and infuse thoroughly with warm water only. Do not use soaps or detergents. Wipe the outside dry with a clean cloth while the pot is still warm. Invert the pot to air dry before replacing infuser and lid. Avoid contact with salt and oils. If rust occurs, the cup can still be used. Rust from the cup is non-toxic and perfectly safe. If rust bothers you, clean the rusted area with a soft brush, then fill the pot with used tea leaves and boiling water. Allow to sit for 20 minutes, discard and rinse. Tannic acid in the tea reacts with the rust and forms a natural seal, helping to prevent the re occurrence of rust.