Four generations of precision
IMS is an Italian family business with roots dating back to the early 1900s and officially founded in 1946. For four generations, the company has worked with filters and shower screens for espresso machines, and was there from the beginning as the first espresso machine manufacturers emerged. This long experience is reflected in a clear focus: improving the part of brewing that often determines how even and predictable the cup will be.
What particularly distinguishes IMS is its proprietary perforation technology and the use of certified AISI 304 stainless steel. Together, these result in filter baskets built for durability, a stable fit, and consistent flow over time. For you as a product selector, it is therefore not just about Size, but about getting a basket that helps the machine, grinder, and puck preparation work more consistently every day.
16–20 g with a focus on even extraction
This basket is designed for those who brew double shots within a dosing range used every day by many home baristas and cafés. What makes it particularly interesting is the combination of precision-punched holes, stainless steel, and a format for 58 mm/58.4 mm Portafilter — a setup that provides better conditions for even flow through the puck.
For those who want to be able to replicate the result
If you already have a good grinder, careful distribution, and consistent tamping, this is an upgrade that makes a difference in the cup. The basket is particularly well suited to those who want to reduce variation between shots and achieve more predictable brewing without changing their entire setup.
Check the fit first
58 mm is a good starting point, but the right choice also depends on the outer diameter, height, and how your Portafilter basket fits in the handle. Always compare the dimensions with your current basket or your machine’s specifications before buying, especially if you use a bottomless Portafilter or another precision accessory.
Choose by dose, not just by machine
A basket should also match how you actually brew. If you usually use around 16–20 grams, it is wise to choose a model intended for that range, since puck height and headspace affect how the water meets the coffee during extraction.
Frequently asked questions
Here you’ll find answers to the most important things to check before choosing.
Does a 58 mm basket fit all espresso machines with a 58 mm Portafilter?
Not always. Although 58 mm is standard for many machines, differences in outer diameter, height, rim design, and Portafilter can mean that the fit varies. Therefore, check both the dimensions and machine compatibility before ordering.
Why does the dosing range matter?
The dosing range indicates approximately how much coffee the basket is designed to hold. If you use too little or too much coffee relative to the basket’s intended range, the puck height may be less suitable, which in turn affects flow and extraction.
What is the advantage of a precision basket compared with a standard basket?
A precision basket is designed to provide more consistent conditions from shot to shot. For you, this is mainly noticeable as better repeatability: when the grinder setting, dose, and tamping are the same, the result is easier to reproduce.
Do I need to change the grind size when I switch baskets?
Often, yes. A new basket can change how quickly water passes through the puck, which means you may need to adjust the grind size, dose, or yield to achieve the right extraction again.
