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Cold Brew Coffee Guide

Cold brew coffee preparation

What You'll Need

  • Large jar, pitcher, or dedicated cold brew maker (1-2 liter capacity)
  • Coffee grinder (capable of coarse grinds)
  • Filtration system: paper filters, cheesecloth, or fine-mesh strainer
  • Freshly roasted coffee beans (medium to dark roast recommended)
  • Filtered water
  • Digital scale
  • Stirring utensil
  • Storage container for concentrate

Standard Cold Brew Recipe

  • Coffee: 250g
  • Water: 1250g
  • Ratio: 1:5

Step-by-Step Instructions

  1. Grind 250g of coffee beans to a coarse consistency (similar to raw sugar or sea salt).
  2. Place the ground coffee in your brewing container.
  3. Add 1250g (1.25 liters) of cold, filtered water to the container.
  4. Gently stir to ensure all the coffee grounds are saturated with water.
  5. Cover the container and place it in the refrigerator.
  6. Steep for 12-24 hours (12 hours for lighter flavor, 24 hours for stronger flavor).
  7. After steeping, strain the coffee concentrate through a fine-mesh strainer to remove larger particles.
  8. For a cleaner brew, line the strainer with a paper filter or cheesecloth and strain again.
  9. Store your cold brew concentrate in a sealed container in the refrigerator for up to 2 weeks.
  10. When serving, dilute the concentrate with water, milk, or ice at a 1:1 ratio (or to taste).

Brewing Methods Comparison

MethodEquipmentProsCons
Immersion MethodLarge jar or pitcher- Simple to execute
- No special equipment
- Consistent results
- Can be messy to filter
- Requires more coffee
Toddy MethodToddy brewer or similar system- Easy filtration
- Cleaner result
- Reusable filter
- Special equipment needed
- Higher initial cost
Cold Drip MethodCold drip tower- Elegant process
- Higher clarity
- Different flavor profile
- Expensive equipment
- Complex setup
- Requires more monitoring

Factors Affecting Cold Brew Quality

  • Grind Size: Coarse grind is ideal for cold brew. Too fine: muddy, over-extracted coffee. Too coarse: weak, under-developed flavor.
  • Coffee-to-Water Ratio: Affects strength and concentration.
    • Stronger concentrate (1:4): More intense, can be diluted more
    • Standard concentrate (1:5): Balanced, versatile
    • Lighter concentrate (1:7): Ready to drink with minimal dilution
  • Steeping Time: Longer steeping times extract more compounds but can increase bitterness.
    • 12 hours: Lighter, more subtle flavors
    • 16-18 hours: Balanced extraction (ideal for most beans)
    • 24 hours: Fuller extraction, stronger flavor
  • Water Quality: Use filtered water for the cleanest taste.
  • Coffee Freshness: Use beans within 1-3 weeks of roast date for optimal flavor.
  • Brewing Temperature: Room temperature vs. refrigerated brewing affects extraction rate and flavor profile.

Cold Brew Recipe Variations

  • Ready-to-Drink Cold Brew: Use a 1:7 coffee-to-water ratio (150g coffee to 1050g water) and steep for 16 hours. This creates a less concentrated brew that can be enjoyed without dilution.
  • Extra-Strong Concentrate: Use a 1:4 ratio (250g coffee to 1000g water) and steep for 24 hours. Dilute 1:2 or more when serving.
  • Cold Brew with Spices: Add cinnamon sticks, cardamom pods, or vanilla bean to the grounds before brewing for infused flavors.
  • Japanese-Style Flash Brew: Brew hot coffee at double strength, then immediately pour over ice to rapidly cool (not true cold brew, but a refreshing alternative).

Serving Suggestions

  • Classic Cold Brew: Dilute concentrate 1:1 with water, serve over ice with optional splash of cream.
  • Cold Brew Latte: Mix 1 part concentrate with 2 parts milk of choice, serve over ice.
  • Vanilla Sweet Cream Cold Brew: Top cold brew with a mixture of heavy cream, vanilla extract, and simple syrup.
  • Cold Brew Tonic: Pour cold brew concentrate over ice and add tonic water with a slice of lemon or orange.