Difference Between Pressurised and Non-Pressurised Filter Baskets
When you get an espresso machine, it typically comes with either a pressurised portafilter basket, a non-pressurised one, or sometimes both! But what’s the difference, and which one is best for your coffee-making needs?
Let’s break it down so you can choose the right espresso filter basket for you.
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Choose a filter basket based on the internal diameter of your portafilter!
How to Identify a Pressurised Portafilter Basket
Distinguishing between different filter baskets is easy once you know what to look for.
A pressurised portafilter features a basket with a single small hole at the bottom, controlling the flow of coffee and creating artificial pressure for better extraction. In contrast, a non-pressurised basket has numerous tiny holes, allowing for a more traditional espresso experience that relies on grind size and tamping technique.
But why does this matter, and how does it impact your coffee?
What Is The Difference Between Pressurised and Non-Pressurised Filter Baskets?
A pressurised basket has a single tiny hole at the bottom, which helps build up pressure before forcing the espresso through. This design compensates for variations in grind size and tamping technique, making it easier to pull a decent shot with minimal effort.
A non-pressurised basket, on the other hand, has multiple small holes across the base. This means the pressure is entirely dependent on your grind size, dose, and tamping pressure. Because of this, a non-pressurised espresso filter basket allows for a more refined extraction, producing a fuller-bodied shot with a richer crema and deeper flavour.
That being said, there are different benefits to using both types of filter baskets:
Disadvantages of Pressurised:
Doesn’t rely on coffee for resistance
Poorer espresso quality
Weaker crema
Limited control of extraction
Benefits of Pressurised:
Less dependant on grind size (so you can have a coarser grind)
No expensive grinder required
Added convenience for beginners
Don’t have to spend time dialling in your grind
More leniency with tamp pressure
Most baskets are compatible with ESE pods
Disadvantages of Non-Pressurised:
Requires an expensive grinder
Learning the right technique is time consuming
Not as convenient as pressurised
Easier to over/under extract your coffee
Benefits of Non-Pressurised:
Greater extraction control
Better espresso quality (full-bodied)
Thicker crema
Great for learning proper technique
Which one should you use?
If you want a quick and easy espresso without worrying too much about grind size or tamping technique, a pressurised portafilter basket is the perfect choice. It’s great for beginners or those using pre-ground coffee.
If you're looking for better control over your extraction and want to get the best possible flavour from your beans, a non-pressurised basket is the way to go. It requires more precision and practice but rewards you with a superior espresso, much like what you'd get in a coffee shop.
Summary
Whether you have a pressurised or non-pressurised basket, you will be able to make good tasting coffee. Pressurised baskets are great for beginners but if you really want to take your espresso making to the next level then a non-pressurised basket is the way to go. You will get a full bodied espresso shot with greater flavour and depth, similar to what you would expect from your local coffee shop.