For Coffee Joulies lovers, there’s nothing worse than taking a sip of scalding hot coffee or realizing your drink has gone cold too quickly. If you’re looking for a way to maintain the perfect coffee temperature, Coffee Joulies could be the ultimate solution. Designed with advanced thermal technology, these innovative stainless-steel beans absorb heat when your coffee is too hot and release it back to maintain optimal drinking temperature for longer.
In this blog, we’ll explore what makes Coffee Joulies a must-have accessory, how they work, and why they are becoming increasingly popular among coffee enthusiasts in the USA.
Table of Contents
What Are Coffee Joulies?
Coffee Joulies are small, stainless steel beans filled with a proprietary phase-change material that helps regulate the temperature of hot beverages. Invented by engineers Dave Jackson and Dave Petrillo, these heat-retaining coffee beans were designed to solve a common problem: coffee that is either too hot or too cold.

Each Coffee Joulie is engineered to absorb excess heat when the beverage is too hot, then slowly release it to maintain an optimal drinking temperature of around 140°F (60°C). This means your coffee stays warm longer without burning your tongue.
How Do Coffee Joulies Work?
The magic of Coffee Joulies lies in their unique thermal technology:
- Absorb Heat: When you first pour hot coffee into your cup, the Joulies absorb excess heat, cooling the drink down to a comfortable temperature faster than usual.
- Store Energy: Inside each Joulie is a phase-change material that melts as it absorbs the heat, storing thermal energy.
- Release Heat: As the coffee cools, the stored energy is gradually released, keeping your drink warm for a longer period.
This technology not only improves the overall coffee-drinking experience but also reduces the need for reheating, making it an eco-friendly and energy-efficient solution.
Why Choose Coffee Joulies?
These Joulies offer a range of benefits that make them an essential coffee gadget for serious coffee drinkers:
- Maintains the Ideal Temperature – Ensures your coffee stays warm for twice as long as normal.
- No More Burnt Tongues – Quickly cools down scalding hot coffee to a drinkable temperature.
- Eco-Friendly & Energy-Efficient – Reduces the need for reheating in the microwave or using extra insulation.
- Durable & Long-Lasting – Made from food-grade stainless steel, these beans are designed to last for years.
- Works with Any Beverage – Perfect for coffee, tea, hot chocolate, and even soups.
Who Can Benefit from Coffee Joulies?
These Joulies are ideal for anyone who enjoys hot beverages but struggles with temperature inconsistencies. Here’s who would benefit the most:
- Busy Professionals – Keeps coffee warm during long meetings or work sessions.
- Commuters – Perfect for travel mugs, ensuring your coffee stays hot during your morning commute.
- Home Brewers – Helps maintain an ideal coffee-drinking experience without the need for constant reheating.
- Outdoor Enthusiasts – Great for camping, hiking, or any outdoor adventure where reheating isn’t an option.
How to Use Coffee Joulies for Maximum Effectiveness
To get the best results from these Joulies, follow these simple steps:
- Preheat Your Joulies – Before adding them to your coffee, place them in a cup of hot water to warm them up.
- Use in an Insulated Mug – While Joulies work in any cup, using them in an insulated mug enhances their performance.
- Stir Occasionally – Stirring your coffee helps distribute the stored heat evenly.
- Enjoy Warm Coffee Longer – Sit back and savor your perfectly warm coffee without worrying about it cooling down too quickly.
Where to Buy Coffee Joulies in the USA
These Joulies are available online through major retailers like Amazon, Walmart, and specialty coffee accessory shops. They also have their own official website where you can purchase directly and explore customer reviews.
Are Coffee Joulies Worth It?
If you love coffee and hate dealing with temperature fluctuations, these Joulies are a game-changer. While they may have a higher upfront cost compared to regular coffee accessories, their durability and effectiveness make them a worthwhile investment for coffee lovers.
Not only do they enhance your coffee experience, but they also help you save time, reduce waste, and enjoy your coffee at the perfect temperature every time.
Final Thoughts of these offer a simple yet effective solution for maintaining the ideal coffee temperature. Whether you’re a busy professional, a traveler, or simply someone who enjoys a leisurely cup of coffee, these innovative temperature-regulating beans can significantly improve your daily coffee routine.
So, if you’re tired of your coffee getting cold too fast, give Coffee Joulies a try and experience the perfect cup of coffee, every time!