Each horn is a unique product of Nature and it isn’t always possible to supply one that looks just like the photograph. Do not put hot liquids (above 60 °C) into your horn. Also do not use for hard liquor, fizzy sodas or any overly acidic beverages as this may damage the interior surface. When you’re done drinking from it you can wash it out with cold or tepid water, but please do not put it into the dishwasher! Clean it gently without the use of sharp or rough scrubbing objects. The horns’ inside surface has been treated with a special colourless food-safe lacquer.