Cold Brew with Puerto Rican Coffee: Ratio, Grind and Dilution

Cold brew extracts coffee with cold water over many hours. It is not simply hot coffee forgotten in the refrigerator. Lower temperature changes extraction speed and often creates a drink with lower perceived acidity, considerable body and chocolate or nut flavors. That can favor certain Puerto Rican coffees, but an overly strong recipe may hide delicate aroma.

Concentrate or ready-to-drink

For concentrate, use one part coffee to five parts water by weight: 100 grams to 500 grams water. Dilute later. For ready-to-drink coffee, begin near 1:12, such as 80 grams coffee to 960 grams water. Weighing removes much inconsistency.

Grind and contact time

Use a coarse grind resembling sea salt. Fine coffee produces sediment and can add dryness. Wet all grounds, cover and steep twelve to eighteen hours under refrigeration. Taste at twelve; dark roast may need less time.

Clean filtration

Pass through a strainer and then a paper filter or clean cloth. Do not squeeze aggressively because that pushes particles and harsh compounds. Store in a clean sealed bottle. Concentrate tastes best during its first week.

Dilution that preserves the recipe

Start with one part concentrate and one part water or milk. Remember that serving ice continues diluting the beverage. Coffee ice cubes help, but cannot rescue poorly extracted concentrate.

Choosing roast

Medium-dark coffee offers chocolate, caramel and body. Medium roast can reveal fruit when extraction is controlled. Compare lots using the same ratio and time; otherwise you cannot know whether differences come from beans or method.

Hygiene and serving

Wash containers, use potable water and refrigerate during extraction. Discard coffee with unusual odor, gas or cloudiness. Serve straight, with milk or orange peel. For a faster foamy alternative, make the Puerto Rican shakerato.