Yes — the KOFIKOFI Bottomless Portafilter 54mm is worth buying if you own a compatible Sage/Breville Barista machine and want a cheaper way to improve shot diagnosis. At £28.89, it sits at its all-time lowest price, carries a 4.3/5 rating from 99 reviews, and undercuts a number of espresso accessories while offering a very specific benefit: visibility.

First impressions

This is a niche accessory, but a useful one. The appeal is immediate: the bottomless design lets you watch the extraction as it happens, which is exactly what home baristas use to spot channeling, uneven tamping, and grind issues. KOFIKOFI also includes a puck screen and filter basket, so you are not just buying a naked handle for show — you are getting a small diagnostic kit for dialling in shots.

What are the key features here?

The most important detail is compatibility. This is a 54mm, 3-ear portafilter designed for Breville/Sage 8 Series Barista Express machines, including models such as BES880, BES881, BES878, BES876, BES870 and BES840. That matters because portafilter fit is not forgiving; if your machine is outside this family, this is not the right buy.

The construction is described as 304 stainless steel for the handle head and 304 stainless steel puck screen, with an anodized body finish. In practical terms, that suggests a more durable, more premium-feeling accessory than the cheapest generic alternatives. The included two-cup basket can also be replaced with a basket of different depth, which gives you some flexibility if you later want to tune dose and headspace.

How does it perform for home espresso?

A bottomless portafilter is only as useful as the feedback it gives, and that is where this product earns its keep. If your grind is too coarse, your distribution is uneven, or your tamp is lopsided, the naked base should make those flaws obvious in real time. That is especially valuable on a machine like the Sage Barista series, where a small change in puck prep can dramatically alter the shot.

The included puck screen may help improve extraction consistency by distributing water more evenly over the puck, although the listing does not provide hard performance data. What can be said confidently is that the screen adds value because it is already part of the package, rather than an extra purchase.

Is the build quality good enough?

The use of 304 stainless steel is reassuring at this price. At £28.89, you are not paying for boutique machining, but the materials listed are sensible and should hold up better than lightweight, all-plastic accessories. The main caution is that the listing text is a little awkward and partially truncated, so you should double-check exact compatibility before ordering. That is the biggest warning here: a 54mm, 3-ear portafilter must match your machine precisely.

Is it good value for money?

At £28.89, with a 15% discount from the £33.99 RRP, this is priced competitively for a bottomless setup that includes a basket and puck screen. The value case is strengthened by the fact that the current price is the all-time lowest and sits exactly at the recorded average of £28.89. For a targeted accessory that can help you improve shot quality faster, that is strong value.

How does it compare to alternatives?

Compared with the Maestri House Mini Coffee Scale at £35.99, the KOFIKOFI is cheaper, but it serves a completely different purpose: this is about extraction feedback, not weighing shots. Against the KC Kitchen & Co. airtight coffee storage tin at £25.95 or the Airscape canister at £51.99, the KOFIKOFI is the more specialised buy if your priority is espresso quality rather than bean storage.

If you are choosing between accessories, the KOFIKOFI makes sense when your next improvement is inside the portafilter, not in the grinder bin or coffee tin. It is not a universal upgrade, but for the right machine it is a practical one.

Final take

The KOFIKOFI Bottomless Portafilter is a focused, affordable tool for learning and improving espresso extraction. It is most compelling for Sage/Breville Barista owners who want clearer feedback on puck prep without spending much more than £30. The main risk is compatibility — if your machine is not one of the supported 54mm 3-ear models, skip it.