Cantera Negra Tequila Silver is a pure and refined form of their Elixir de Agave spirit. It has produced from their most excellent batches, and is crystal clear and light tasting, with natural hints of citrus and clean, earthy notes on the finish. It has bottled at 40% alcohol by volume. Cantera Negra Silver is unparalleled as a base tequila for any drink recipe. Enjoy!