Quick Answer: To make profitable cold brew coffee for your Canadian cafe, use a coarse grind of medium-to-dark roast beans (like Lavazza or 49th Parallel) steeped in cold filtered water for 16 to 24 hours at a 1:8 ratio. This creates a versatile concentrate that can be diluted with water or milk, offering a smoother, less acidic flavor profile than traditional iced coffee while commanding a premium price point.
From what we've seen supplying from our Calgary warehouse, cold brew coffee has transitioned from a seasonal summer trend to a year-round staple in Canadian cafes. Its smooth, naturally sweet, and low-acid profile appeals to a broad demographic, particularly younger consumers who prefer cold beverages regardless of the weather outside. For operators, cold brew represents a high-margin opportunity; because it is brewed as a concentrate, a single batch yields a significant number of servings, reducing labor during peak rush hours.
Unlike traditional iced coffee—which is brewed hot and then chilled, often resulting in a bitter or diluted taste—cold brew relies on time rather than temperature to extract the coffee's flavor compounds. This slow extraction process leaves behind the bitter oils and fatty acids, resulting in a clean, robust concentrate that pairs exceptionally well with dairy, plant-based milks, and popular flavouring syrups.
Author: Amani
The Cold Brew Process: Ratios and Roasts
The foundation of an excellent cold brew is the bean and the grind. A coarse grind is absolutely essential; a fine espresso grind will over-extract and result in a muddy, bitter brew that clogs your filtration system.
1. Choosing the Right Bean: While you can use any coffee for cold brew, medium to dark roasts generally perform best. The cold extraction process highlights chocolate, nutty, and earthy notes while muting bright, fruity acidity. Blends like Lavazza Super Crema or 49th Parallel's Old School Espresso provide a robust, chocolate-forward base that holds up well when diluted with milk and ice.
2. The Golden Ratio: For a commercial setting, brewing a concentrate is the most efficient method. A standard starting point is a 1:8 ratio of coffee to water by weight (e.g., 1 kg of coarse ground coffee to 8 liters of cold, filtered water). This concentrate is then diluted 1:1 with water or milk when served. Adjust this ratio based on your specific beans and customer preference.
3. Steeping Time and Temperature: Cold brew can be steeped at room temperature or in the refrigerator. Room temperature steeping typically takes 16 to 18 hours and extracts flavor more quickly, while refrigerated steeping takes 20 to 24 hours and yields a slightly cleaner, crisper profile. Whichever method you choose, consistency is key to maintaining your cafe's flavor profile.
Serving and Scaling Your Cold Brew Program
Once your concentrate is brewed and filtered, it must be stored in an airtight container in the refrigerator, where it will remain fresh for up to 14 days. This long shelf life is a major operational advantage, allowing staff to brew large batches during slow periods.
To serve, fill a cup with ice, add the desired amount of concentrate, and top with equal parts filtered water or milk. Cold brew is also the perfect canvas for customization. Offering a "Vanilla Sweet Cream Cold Brew" using Torani Vanilla syrup and a house-made cold foam allows you to charge a premium price for a drink that takes seconds to assemble.
Frequently Asked Questions
The following operator questions are answered with cited sources. Every FAQ links to the community thread, buyer guide, or regulator page it was researched from.
What is the best coffee-to-water ratio for making cold brew coffee?
The most commonly recommended ratio for cold brew is 1:4 or 1:5 (coffee to water) for a concentrate, and 1:8 to 1:10 for ready-to-drink cold brew. For a cafe-scale batch, 12 ounces of coarsely ground coffee to 7 cups (about 56 oz) of water is a standard Toddy system recipe. Many cafe operators use a 1:5 ratio to produce a concentrate that can be diluted 1:1 with water or milk when served. See discussion at
enjoyjava.com and
r/Coffee.
Source: How do you guys make cold brew? - r/Coffee
How long should I steep cold brew coffee for the best flavor?
Most cold brew enthusiasts and cafe operators steep for 12-24 hours. A popular r/Coffee thread with 534 votes and 280 comments found that 12-14 hours is standard at room temperature, while some prefer 24 hours in the fridge for a smoother result. One user noted that Stumptown's R&D found after about 10 hours it didn't make much difference, while others found 96-hour steeps produced exceptional results. For cafes, 18-24 hours at room temperature is the most common commercial standard. See
r/Coffee discussion and
r/Coffee steeping thread.
Source: How long do you steep your cold brew? - r/Coffee
Should I steep cold brew at room temperature or in the fridge?
Both methods work, but they produce different results. Room temperature steeping (16-18 hours) extracts faster and produces a more full-bodied flavor. Fridge steeping (18-24 hours) produces a smoother, less acidic beverage but takes longer. A popular r/coldbrew thread discusses this in detail — many users prefer room temperature for the first 12-16 hours then transfer to the fridge. For cafes, room temperature steeping is more common due to faster throughput. See
r/coldbrew discussion and
r/Coffee fridge vs room temp thread.
Source: Fridge or room temperature? - r/coldbrew
What grind size should I use for cold brew coffee?
A coarse grind is recommended for cold brew — similar to the texture of kosher salt or raw sugar. Coarse grounds prevent over-extraction during the long steep time and make filtering easier. Pre-ground coffee labeled 'coarse' or 'French press' works, but for the best flavor, grind fresh beans to a coarse setting just before brewing. Medium-dark roasts are often chosen for cold brew as they produce a fuller, deeper flavor profile. See
r/Coffee cold brew discussion.
Source: How do you guys make cold brew? - r/Coffee
How do I make cold brew coffee in large batches for a cafe?
For large-batch cold brew, use a 22-quart container with 3.5 gallons of water and about 1 pound of coarsely ground coffee. A multi-stage filtration process is essential: first strain through a fine-mesh sieve lined with cheesecloth or a nut milk bag to catch coarse grounds, then filter again through a paper coffee filter to remove micro-fines. Commercial systems like the Toddy or Filtron are popular for cafes. A chinois strainer works well for initial filtering. See
WebstaurantStore guide and
r/Coffee discussion.
Source: How to Make Cold Brew Coffee in Bulk - WebstaurantStore
How long does cold brew coffee last in the fridge?
Cold brew concentrate can last up to 2 weeks refrigerated in an airtight container, while ready-to-drink diluted cold brew stays fresh for 5-7 days. Cold brew has a significantly longer shelf life than regular iced coffee due to its lower acidity and the absence of heat in the brewing process. Always store in an airtight container to prevent contamination and flavor loss. See
SF Bay Coffee shelf life guide.
Source: Cold Brew Coffee Shelf Life: How Long Does Your Brew Stay Fresh?
Is cold brew coffee safe to serve in a Canadian cafe? Are there food safety concerns?
Cold brew coffee is considered higher risk than traditionally brewed coffee because it is not subject to a heat treatment step during brewing. Health Canada's CFIA has noted that cold brewed coffee may support the survival and growth of pathogens that would otherwise be inactivated by hot water. Canadian cafes must follow provincial food safety regulations, including proper refrigeration, sanitation, and safe food handling practices. The CFIA continues to monitor cold brew as part of food safety testing. See
CFIA Bacterial Pathogens in Cold Brewed Coffee report.
Source: Bacterial Pathogens in Cold Brewed Coffee - CFIA
What are the food safety requirements for cafes serving cold brew in Canada?
Cafes and coffee shops in Canada must follow strict food safety requirements under the Food and Drugs Act and the Safe Food for Canadians Regulations. While exact rules vary by province and municipality, core compliance includes proper refrigeration, sanitization of brewing equipment, food handler certification, and routine health inspections by local public health authorities. Cold brew specifically requires temperature control since it is not heat-treated during brewing. See
Health Canada Food and Drug Regulations.
Source: Canada's Food and Drugs Act and Regulations - Canada.ca
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