If you’ve ever browsed for an espresso machine, you’ve probably noticed terms like 15-bar or 20-bar pressure listed in the product description. But what does this really mean—and does higher pressure actually make better coffee?
Let’s break it down and see why 20-bar espresso machines are becoming a favorite for home baristas.
What Is “Bar Pressure” in Espresso Machines?
Understanding Pressure and Extraction
“Bar” is a unit of pressure measurement. One bar equals the atmospheric pressure at sea level. Espresso machines use bars to indicate how much pressure they can generate to push hot water through finely ground coffee.
How Espresso Machines Use Pressure to Brew Coffee
Pressure plays a key role in espresso extraction—it forces hot water through compacted coffee grounds, releasing oils, aromas, and flavors that create espresso’s rich, concentrated taste. Without enough pressure, your coffee will taste flat and watery.
Why 20-Bar Pressure Matters
The Ideal Pressure for Espresso Brewing
Traditional espresso brewing uses around 9 bars of pressure, which is enough for a professional extraction. However, home espresso machines often advertise higher pressure—15, 19, or 20 bars—to ensure consistent performance and compensate for variables like grind size and tamping.
Does Higher Pressure Always Mean Better Coffee?
Not necessarily. While a 20-bar pump can technically produce more pressure, the real benefit lies in stability and consistency during brewing.
The Role of Consistency and Temperature Control
Even pressure and accurate temperature are crucial for achieving the perfect shot. A good espresso machine doesn’t just reach high pressure—it maintains it evenly throughout the extraction.
Common Misconceptions About Pressure Ratings
Some users think that “more bars = stronger coffee,” but that’s not always true. A 20-bar machine doesn’t mean it brews at 20 bars—it simply can reach that level, while actual brewing happens around 8–9 bars for the perfect espresso.
15 Bar vs 20 Bar Espresso Machine: The Key Differences
If you’re deciding between a 15-bar and a 20-bar espresso machine, here’s what to consider.
Pressure Levels and Extraction Quality
A 15-bar machine typically delivers enough pressure for a solid espresso. However, a 20-bar machine can extract more evenly and handle a wider range of grind sizes, resulting in a richer crema and smoother flavor.
Taste and Crema Differences
Higher pressure helps form that signature crema—the golden foam layer on top of your espresso. A 20-bar system often creates a thicker, longer-lasting crema with more aroma retention.
Machine Durability and Pump Type
20-bar machines often feature Italian-style high-pressure pumps designed for longer lifespan and better temperature stability. This means more consistent results and less wear over time.
Which One Should You Choose for Home Use?
When 15-Bar Is Enough
If you mainly brew standard coffee pods or prefer a quick espresso with minimal fuss, a 15-bar model will meet your needs.
When 20-Bar Offers a Clear Advantage
If you enjoy experimenting with grind size, milk frothing, and café-style drinks like cappuccinos or lattes—a 20 bar espresso machine like the CHULUX JH-C5010 will give you more flexibility and better extraction quality.
💡 CHULUX JH-C5010 Espresso Machine — delivers true 20-bar pressure with a compact design, rich crema, and user-friendly operation for beginners and coffee lovers alike.
How 20-Bar Machines Improve Coffee Quality
Rich Crema and Full-Bodied Flavor
The higher, more stable pressure extracts essential oils and fine coffee particles, resulting in a crema that looks and tastes like café espresso.
Faster and More Efficient Extraction
With a 20-bar pump, water passes evenly through the coffee puck, ensuring full flavor in every shot—no over- or under-extraction.
Perfect for Espresso, Cappuccino, and Latte Lovers
Whether you crave a bold espresso shot or a creamy milk-based drink, the consistent extraction helps bring out your beans’ best characteristics.
How to Choose the Right 20-Bar Coffee Machine
Key Features to Look For
Pump Type and Heating System
Opt for a high-pressure pump and a fast-heating system to shorten wait times and ensure stable temperature during extraction.
Water Tank Capacity and Size
For small kitchens or limited counter space, a compact machine with a detachable water tank—like CHULUX’s 40oz design—makes daily brewing easier.
Ease of Cleaning and Maintenance
Removable drip trays and simple descaling functions help extend your machine’s lifespan and keep every cup tasting fresh.
Recommended 20-Bar Coffee Makers for Home Use
If you want café-quality espresso at home, the CHULUX JH-C5262 Espresso Machine is an excellent choice.
It combines high pressure, easy operation, and stylish design—perfect for all espresso lovers.
Tips for Getting the Best Out of a 20-Bar Espresso Machine
Use Freshly Ground Coffee Beans or Compatible Pods
Fresh coffee ensures optimal extraction and flavor. Avoid pre-ground coffee that has lost its aroma.
Maintain Proper Temperature and Cleaning Routine
Regular cleaning prevents mineral buildup and keeps the water flow smooth. Always flush your steam wand after use.
Experiment with Brew Time for Your Preferred Taste
Try adjusting your brew time or grind size to find your personal “sweet spot” of espresso strength and smoothness.
FAQs
1. Why did I just receive the machine but it’s not pumping or no water comes out?
We need release hot water to let the pump get water inside:
- Fill tank & install in place, plug in & press Power button
- When preheat is done, turn the knob to MAX, wait 10s, then turn to OFF
- Repeat this cycle 3-5 times, it will back to normal
2. Why is there some water inside the steam wand when I just received the machine?
Don't worry, it's just clear water from steam and hot water tests during the quality control period.
We suggest refer to the "Before First Use" in User's Manual to make a clean.If you have any trouble, please contact anytime for help.
3. What happens if espresso pressure is too low?
Low pressure results in under-extracted espresso—watery, sour, or weak. Check your grind size (too coarse may reduce pressure), ensure proper tamping, and descale the machine if necessary.
4. Why isn’t my espresso shot turning out well?
Use original accessories, fresh dark roast powder (NOT expired, Medium to Medium-Fine, NOT too fine or too coarse), 8-9g for 1 CUP filter, 14-15g for 2 CUP filter, distribute powder evenly, tamp powder tightly, then your espresso will very good!
