Smooth, low-acid, and naturally sweet. Cold brew is steeped slowly in the fridge, so there's no live timer here — just mix it and wait. This makes a concentrate you dilute to taste.
Add 100 g of coarse grounds to 1 L of cold water. Stir well so every ground is wet.
Water: 1000 g
Cover and refrigerate for 12–24 hours. Longer steeping gives a stronger concentrate.
Pour through a fine filter into a clean container. Let it drip — don't squeeze the grounds, or it turns bitter.
Dilute the concentrate about 1:1 with water or milk and serve over ice.