IMS Baristapro Nanotech Precision Basket – Ridgeless, 15g (58mm)
Fifteen grams, evenly distributed in the basket – a slim dose that allows for clarity. You attach the bottomless portafilter, and the very first drop shows what a precise hole pattern can do: a calm, even flow instead of individual streams. After knocking it out, the basket comes out almost clean – oils and water bead off the Nanotech quartz coating.
Nobody needs a precision basket to pull good espresso – the original basket does its job. You want it because the cup becomes clearer, rounder, and sweeter. This is one of many possible decisions, and we respect it either way.
Important: The shot runs significantly faster
A tip from our experience that you should know before the first shot: The Nanotech quartz coating noticeably reduces friction in the basket – the water flows through the puck significantly faster. This shifts the extraction dynamics, and the taste often changes radically compared to your previous basket. This is not a defect, but the nature of this basket. Expect to grind finer and recalibrate your recipe – grind size first, then dose if necessary – until the cup is where you want it again. Especially with the slim 15g dose, precise adjustment is worthwhile. Our opinion is one of many – but you should plan for this effect.
What makes this basket special
Espresso is extraction over a weight ratio – usually 1:2, meaning about 30g in the cup from 15g of coffee. How cleanly this succeeds depends on how evenly the water flows through the puck. A precise, even hole pattern distributes the flow over the entire surface – fewer channels, fewer over- and underextracted areas at the same time. What you taste is density, sweetness, and a round finish; caramel, chocolate, and nut stand out more clearly, and those who like light roasts will also discover fruity acidity at the end. Taste and smell are inseparable: a large part of the aroma is created retronasally, when swallowing. The Nanotech quartz coating on the AISI 304 stainless steel makes the surface smoother, repels oils, and facilitates cleaning. It is our observation that the choice of basket fundamentally changes the aroma profile.
At a glance
| Manufacturer |
IMS (Industria Materiali Stampati), Italy |
| Material |
Stainless steel AISI 304 |
| Coating |
Nanotech quartz (oil and water repellent) |
| Size |
58 mm |
| Dose |
15 g |
| Design |
Ridgeless, precisely laser-cut hole pattern |
| Flow |
Faster than uncoated baskets – adjust grind size |
Who it's for
For everyone who likes slim doses – clear, lighter cups or smaller shots – and wants to purposefully improve their setup without changing their machine or grinder. Every budget is welcome. In a bottomless portafilter, the difference is most noticeable. If you want to dose higher, the same basket is also available in 18, 20, and 22g. You belong here because you love coffee – not because you use a specific basket.
What goes with it
The basket looks best in a bottomless portafilter. Because the shot runs faster, a finely adjustable grinder is especially worthwhile. To make the puck even: the tamper collection – affordable with Normcore, premium with Weber Workshops. Against clumps before: WDT Tools. On top of the puck: Puck Screens. All other baskets: Precision Baskets Collection.
Frequently Asked Questions
Why does my shot run faster with the Nanotech basket – and what do I do?
The Nanotech quartz coating reduces friction in the basket, causing water to flow through the puck faster. Extraction shifts noticeably, and the taste often changes significantly. Therefore, grind finer and recalibrate your recipe – grind size first, then dose.
Is 15g the right dose for me?
15g is a slim dose – great for clearer, lighter cups or smaller shots. Those who prefer a denser, more intense experience can choose 18, 20, or 22g (the same basket is available in all sizes). The dose should roughly match the basket capacity.
What does "ridgeless" mean?
The basket has no circumferential retaining ridge and is held in place by the spring or the portafilter. It fits easily in most 58mm portafilters – if in doubt, tell us your portafilter model.
How do I clean the basket?
Daily backflush without cleaner, every 50 shots or so with a cleaning agent like Urnex Cafiza. Thanks to the coating, less coffee oil adheres.
Can I see the basket before buying?
Yes, at our showrooms in Bern (Gerberngasse 44) and Zurich Oerlikon (Hagenholzstrasse 50b).
Roastery Tip
An even basket rewards dense, aromatic beans the most. From our coffee roastery, Cozy Chocolate and Nutty Delight brew full-bodied and round. Those looking for maximum body without any acidity can stick with Very Nutty; those who like fruity notes will discover a lively peach note with Wild Peach. Our recommendation – one of many.
