How to Serve Cafe Expressions RTD Cold Brew
By Onyx Coffee Lab - Coffee Roasters • Café • Barista Training | Published: 2026-10-19
Category: How-to Guides
Learn how to serve Onyx Coffee Lab's Cafe Expressions RTD cold brew for the best flavor. Step-by-step tips for pouring, storing, and customizing your ready-to-drink coffee.
Quick answer
Serve Cafe Expressions RTD cold brew over fresh ice in a tall glass, then customize with milk or sweetener to taste. The 12-ounce size is designed for single servings, so you can enjoy it straight from the bottle or pour it over ice.
Why serving temperature matters
Cafe Expressions RTD cold brew is already chilled and ready to drink, but serving it over fresh ice helps maintain the ideal cold temperature without diluting the flavor too quickly. If you prefer a stronger taste, use larger ice cubes or chill the glass beforehand.
Avoid letting the bottle sit at room temperature for long periods. Once opened, consume within 24 hours for the best freshness.
Customizing your cold brew
The four flavors—Chai Latte, Matcha Latte, Onyx Delight, and Salted Mocha—are crafted to be enjoyed as-is, but you can easily adjust them to your preference. For a creamier texture, add a splash of oat milk or whole milk. If you want extra sweetness, a drizzle of simple syrup or vanilla syrup works well.
One trade-off: adding milk or sweetener will change the original flavor balance, so start with a small amount and taste as you go.
How to serve Cafe Expressions RTD cold brew
- Chill the bottle: Place your Cafe Expressions bottle in the refrigerator for at least 2 hours before serving. The cold brew is best enjoyed cold, and a well-chilled bottle ensures the flavor stays crisp. Skipping this step can lead to a warmer drink that tastes flat.
- Fill a glass with ice: Use fresh, clean ice cubes in a tall glass. The ice will keep the cold brew cold without watering it down too quickly. Avoid crushed ice—it melts faster and dilutes the flavor.
- Pour the cold brew over ice: Open the bottle and pour the cold brew directly over the ice. Fill the glass to your desired level—the 12-ounce bottle holds one full serving. Pour slowly to prevent excessive foaming.
- Customize to taste: Add a splash of milk (dairy or plant-based) or a drizzle of sweetener if desired. Stir gently to combine. Start with a small amount—you can always add more, but you can't take it out.
- Serve and enjoy immediately: Drink your cold brew right away while it's still cold and fresh. If you have leftover cold brew in the bottle, recap it and store it in the refrigerator for up to 24 hours. Do not freeze the bottle—freezing can alter the texture and flavor.
Product details
- Cafe Expressions: Cafe Expressions offers a convenient selection of ready-to-drink beverages from Onyx Coffee Lab. Each 12-ounce option is crafted for those who appreciate quality and ease, delivering a satisfying experience wherever you are. The 12-ounce size is perfect for a single serving, so you can grab one from the fridge and enjoy it on the go without any preparation.

Cafe Expressions
