
Cachaça is a sugarcane spirit, and by law only a spirit made in Brazil may carry the name. The key difference from rum is the raw material. Rum is usually made from molasses, the thick dark residue left after boiling sugar; cachaça comes from the juice of freshly cut cane, fermented within hours while it is still fresh. That is the root of the flavor gap: rum leans toward treacle and caramel, while cachaça stays grassy and fresh.
Fresh cane juice is what gives it the grassy edge, and only spirits made the same way keep it. A rum distilled from refinery syrup matches the strength and brings caramel instead, which in a Caipirinha reads as sweetness the drink did not ask for.
Molasses rum ("Brazilian rum")
Cachaça gets called "Brazilian rum" out of habit, and the US does formally class it as a type of rum. But it is really its own category: different raw material (fresh juice, not molasses), its own rules and its own flavor — and no bartender calls it rum.
Rhum agricole
Distilled to a higher strength off the still and made under appellation rules, so it comes out sharper and more mineral. In a Caipirinha that reads as less sweetness and more green bite.
Aguardente de cana
These are all cane distillates, and cachaça is the Brazilian one. In a Caipirinha any of them works measure for measure; aguardente just runs stronger at times (up to 54%); then take a little more lime and sugar.
The artisanal kind comes off alambiques, the industrial off a column: the first is brighter, and the shelf marker is cachaça de alambique. Nor is the wood always oak: amburana gives a cinnamon no oak can.
The grassy, fresh-cane note is the whole difference between cachaça and a light rum, and it is volatile — an opened bottle standing half empty for a year will have drifted toward plain rum. Keep it closed, out of the sun, and move the last of it into a smaller bottle.

Cachaça Piña Colada
White rum, Cachaça

Caipirinha
Cachaça

Passion Fruit Caipirinha
Cachaça

Rum Negroni
Light gold rum, Amber bitter liqueur, Rosso vermouth

Strawberry and Basil Caipirinha
Cachaça

Tropical Caipirinha
Cachaça

Blackberry Agave Caipirinha
Cachaça

Blueberry Caipirinha
Cachaça

Caipirinha – IBA
Cachaça

Kiwi Caipirinha
Cachaça

Mango Daiquiri
White rum

Melon and Apple Caipirinha
Cachaça

Melon Caipirinha
Cachaça

Pineapple Caipirinha
Cachaça

Piña CoCo Lada
White rum

Caipirinha (low-calorie)
Cachaça

Batida de Carneval
Cachaça

Cachaça Daiquiri
Cachaça

Brasil Cocktail
Cachaça

Brazil Basil Smash
Cachaça

Rabo de Galo – IBA
Cachaça