Espresso LungoTriple, in the context of espresso brewing, refers to a triple shot of espresso, pulled from approximately 21 grams of coffee grounds. The triple is pulled using special filter baskets that can hold the necessary 21 grams of coffee. Triplo, as is also called with the Italian name, is not just simply a time and volume adjustment variant of the solo. The triple shot needs to be pulled in about the same time as a single. For this, the grind size needs to be adjusted accordingly.  

A triplo espresso can be pulled into a normale, a lungo, or a ristretto. The difference will be the amount of water used, the grind size, and the extraction time.