What are "Firewater" Ecuadorian rums made from? 
Cristal Limón:  This means that Cristal Limón rum is a sugarcane alcohol. Aguardiente:  The word is a compound of the Romance languages' words for "water" ("agua" in Spanish; "aigua" in Catalan; "água" in Portuguese; "auga" in Galician) and "fiery" ("ardiente" in Spanish; "ardent" in Catalan; "ardente" in Portuguese and Galician), similarly to the English term "firewater".
sugarcane alcohol