How to Use the Brew Flask: Coffee and Tea On the Go
By The World's Most Needed Reusable Water Bottle | Published: 2026-10-17
Category: How-to Guides
Learn how to use the Brew Flask for coffee and tea on the go. Get step-by-step tips for filling, carrying, and cleaning your insulated flask.
Quick answer
To use the Brew Flask for coffee or tea, start by preheating or pre-cooling the flask, then fill it with your beverage, seal it with the lid, and enjoy. Clean it promptly after use to keep flavors fresh.
Why the Brew Flask Works for Hot and Cold Drinks
The Brew Flask is designed for versatility, holding both hot coffee and iced tea without leaking or losing temperature quickly. Its 350ml capacity is ideal for a single serving, and the double-wall insulation keeps drinks hot for hours or cold all day. The flask is available in a range of colors including Forest Green, Obsidian Black, and Sunlit Sand, so you can pick one that matches your style.
Choosing the Right Brew Flask Size and Color
The Brew Flask comes only in a 350ml size, which is perfect for a standard cup of coffee or tea. If you need more volume, consider the Brew Bundle, which includes two flasks for sharing or carrying different beverages. When selecting a color, think about visibility and personal preference—darker shades like Obsidian Black hide stains better, while lighter ones like Sunlit Sand are easier to spot in a bag.
Accessorizing Your Brew Flask
For mess-free refills, the Peak Funnel & OG Lid accessory fits the Brew Flask snugly and prevents spills when pouring from a larger container. The integrated funnel makes it easy to add hot water or ice without drips, and the secure lid keeps your drink sealed during travel. This accessory is especially useful if you frequently refill at a water station or from a thermos.
How to Use the Brew Flask: Step by Step
- Preheat or pre-cool the flask: Before filling, rinse the flask with hot water for hot drinks or cold water for cold drinks. This prevents the insulation from working against your beverage temperature. Checkpoint: If you skip this step, your drink may lose temperature faster than expected.
- Fill with your beverage: Pour coffee, tea, or cold drink into the flask, leaving a little space at the top for the lid. Avoid overfilling to prevent leaks when closing. Common mistake: Filling to the brim can cause spills when the lid is screwed on, especially with hot liquids.
- Seal and carry: Screw the lid on tightly. The Brew Flask’s lid is designed to be leak-proof, but ensure it’s fully tightened before placing it in a bag. Checkpoint: Test the seal by tipping the flask over a sink—if any liquid escapes, tighten the lid more.
- Enjoy and clean promptly: Drink directly from the flask or pour into a cup. After finishing, rinse the flask with warm water and mild soap. For stubborn stains or odors, use a bottle brush and baking soda solution. Common mistake: Leaving coffee or tea residue overnight can cause lingering flavors and stains. Clean within an hour for best results.
Product facts
- Brew Flask: The Brew Flask from Ocean Bottle Store is a practical and dependable choice for everyday hydration. Designed for those who value simplicity and function, this flask is available in a 350ml size to suit your daily needs. The 350ml size is compact enough for a purse or backpack, making it easy to carry coffee or tea without bulk.
- Peak Funnel & OG Lid: The Peak Funnel & OG Lid is a practical accessory from Ocean Bottle Store, designed to make refilling your reusable water bottle quick and mess‑free. It pairs seamlessly with the brand’s bottles, offering a secure lid and a wide‑mouth funnel for easy pouring. Using the funnel accessory reduces spills when adding hot liquids, which is safer and keeps your flask clean.
