加压与未加压的Portafilter：一个比另一个好吗？

A fun thing about espresso is that there are always things to tinker with. Yes, in the quest for that perfect shot. For example, you could use a pressurised or non-pressurised portafilter.

So what is the difference between the two, and why would you want one or the other? And more importantly, does one make better espresso? That’s what this article is all about!

什么是Portafilter？

让我们从Portafilter的快速解剖学开始，这是最重要的featuresof an浓缩咖啡机。它有两个部分。主组件由连接到过滤篮支架上的手柄组成，该手柄在底部有一个或两个喷口。尽管这是Portafilter的最大部分，但关键部分是过滤篮本身。

过滤篮是一种小型金属滤清器，旨在让咖啡夹在咖啡底上，同时像其他任何咖啡过滤器一样握住咖啡底。为浓缩咖啡而不是咖啡制作的滤篮旨在在高压下运行。

What is the difference between a pressurised and non-pressurised portafilter?

Okay, now let’s talk about pressurised portafilters, which are just different types of filter baskets. A pressurised basket has a false bottom, so it’s also known as a dual-wall basket. From the top, it has a grid of holes like any other filter basket. But from the bottom, there’s just a single hole. This design pressurises the extracted espresso as it exits through one hole.

In a non-pressurised portafilter, the filter basket is just a regular filter. It has a single bottom layer with a regularly spaced grid of holes.

Precision baskets are carefully machined so that each hole is evenly sized and spaced and has microscopically smooth edges. This helps avoid clogs that can interfere with extraction. So they yield more consistent shots (1).

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面对面的比较

So why choose one type of portafilter or the other? It all comes down to your grinder or lack thereof.

Pressurised portafilters were designed to produce a beautiful espresso shot with a thick layer of crema, even if your grind or puck preparation isn’t perfect. According to the pros at Whole Latte Love, they’re an excellent choice for espresso beginners.

So if you’re new to espresso or don’t have access to a good burr grinder, a pressurised portafilter is the right choice. For this reason, they are sold standard with the most inexpensive espresso machines.

On the other hand, if you have a quality burr grinder, you can make undeniably better espresso with a non-pressurised basket. It takes a bit more practice, but you’ll be rewarded with a richer and sweeter shot.

所有商业意式浓缩咖啡机都使用未加压的Portafilters生产浓缩咖啡机, which says a lot about their quality.

那无底的Portafilter呢？

If you’re here with portafilters on the brain, you might be interested in bottomless portafilters. In this case, the portafilter itself is different. Rather than having spouts at the bottom, the filter basket holder has nothing. It’s just an empty ring.

This style of the portafilter is always paired with a non-pressurised filter basket. It makes it easy to spot any flaws in your puck preparation, so it can help you make improvements to your technique. Plus, it looks gorgeous when you manage to nail that perfect shot.

判决

Both pressurised and non-pressurised filter baskets have their place. The right one for you depends on your lifestyle and espresso goals.

Use a pressurised portafilter if:

• 您更喜欢购买预磨咖啡
• You want a reliably good espresso with a thick layer of crema
• 您有一台设备风格的浓缩咖啡机

如果：

• You have access to a quality burr grinder
• 您愿意为真正的浓缩咖啡而努力一些
• 您有商业或生产浓缩咖啡机