Introduction:To make a perfect shot of espresso, in addition to mastering the basic parameters, some easily overlooked details can often affect the final flavor. This article will delve into key steps frequently forgotten during the process — such as not pre-releasing water to cool down, forgetting to remove the coffee puck, or not cleaning the shower screen in time — to help you avoid these common pitfalls and improve the quality of every shot.

There are many seemingly trivial but potentially impactful details in the espresso brewing process. Many coffee enthusiasts tend to overlook these aspects during daily use, leading to suboptimal extraction results and even affecting the longevity of their equipment. Below, we’ll go through several common yet often forgotten steps — see how many you’ve been making.

1. Not Releasing Water to Cool Down Before Attaching the Portafilter

If you wait for some time after the previous extraction before making another shot, the group head may have been heated for too long, and its surface temperature could already be quite high. If you attach the portafilter and start brewing without first releasing some hot water to lower the temperature, the surface of the coffee puck is very likely to be overheated, resulting in burnt and bitter flavors. In this case, the coffee can easily develop an unpleasant scorched taste.

To avoid this, it’s recommended to release some hot water from the group head before attaching the portafilter each time. This helps stabilize the temperature of the group head and surrounding area, creating more ideal initial conditions for the next extraction.

2. Not Tapping Out the Coffee Puck Promptly After Extraction

Another common oversight is forgetting to remove the coffee puck from the portafilter basket after brewing. Many people enjoy their espresso and then proceed to make a latte or americano, neglecting the puck left inside the portafilter. Trapped in a sealed, high-temperature environment, the moisture in the puck evaporates quickly, hardening it. It can then stick to both the basket and group head, and over time may even produce a burnt taste.

If not cleaned promptly, fine particles from the puck may also clog the holes at the bottom of the basket. Over time, this significantly increases cleaning difficulty and may even render the basket unusable. It’s advised to tap out the puck as soon as the extraction is done — not only does this maintain cleanliness, but it also extends the life of your equipment.

3. Neglecting to Clean the Shower Screen

After each extraction, a small amount of coffee residue tends to stick to the shower screen. If not cleaned right away, this residue can dry under high heat, becoming harder to remove and possibly affecting the flavor of the next shot. Therefore, it’s important to form the habit of rinsing the shower screen with water as soon as you take out the portafilter.

This simple action effectively prevents residual oils and coffee grounds from compromising the purity of subsequent extractions, ensuring that every cup showcases the intended flavor characteristics.

4. The Hidden Risks of Leaving the Portafilter Attached to the Group Head

Some baristas or enthusiasts, in an attempt to “keep it warm” or for convenience, often leave the portafilter attached to the group head for extended periods. However, this keeps the interior of the portafilter in a high-temperature, enclosed environment, which not only accelerates the aging of rubber gaskets but may also cause the aromatic compounds in the coffee grounds to volatilize prematurely, affecting the aroma of subsequent extractions.

Additionally, keeping the portafilter on the group head can make it easy to forget whether the puck has been removed, further increasing the risk of hardened residue sticking. Though some worry that not preheating the portafilter might lead to insufficient brewing temperature, you can actually preheat it by running water through the group head during prep — doing so not only achieves preheating, but also carries out the “pre-release water to cool down” step before attaching the portafilter, accomplishing two goals at once.

In summary, while each of these steps may seem simple, they all play an important role in determining the quality of your espresso. By developing good operational habits, you can enhance extraction consistency, extend the lifespan of your equipment, and make every cup of coffee better.

The above content is compiled by CoffeeHunters, a coffee news website.