51mm Bottomless Portafilter 3 Ears Compatible with CASABREWS CM5418 and 3700 Series | with Stainless Steel Double Shot Capacity Cup Filter Basket

Bought this after researching to replace the pressurized portafilter setup that comes stock with the Mr. Coffee Cafe Barista. This basket (3-tab, 4 mm prongs) fit perfectly, and allows me to take better advantage of my upgraded grinding equipment. It also greatly simplifies cleaning and opportunities for rancid coffee to build up in the pressurized portafilter and basket setup, by reducing the number of parts to be dismantled and cleaned down from something like 10 to 2. The portafilter includes a spring ring that holds the basket in place, simplifying puck knock out and keeping things together.The parts seem very well made, and I like the naked portafilter setup, which helps me get a better understanding of how well I ground, distributed, and tamped my beans. I also appreciate the added depth of the non-pressurized basket, which allowed me to get my dosing up from approximately 12 g (if I tried REALLY hard) with the pressurized basket, to up above 14 g. Still experimenting there, but there's loads of room to go, and you can pull a much larger shot with this setup.The final quality of the espresso, to me, is greatly improved with this non-pressurized setup, but only because I have a very good grinder and an existing setup used on a manual espresso machine. You'll also have to go to a custom espresso pump duration, because neither single nor double will be equivalent to what you'll end up with once you change the required pressure and volume of beans in your basket.If you intend to switch to the non-pressurized setup, be aware that this takes out much of the forgiveness that comes with the out-of-the-box pressurized setup, meaning your mileage may vary. But if you have a grinder capable of espresso grind, and a tamper (51 mm works for me), a dosing funnel, and maybe a distribution tool, you're much better off turning your semi-automatic into a mostly-manual machine. But if you want to make the switch, this portafilter and basket is a perfect upgrade to your setup, for those with the Mr. Coffee Cafe Barista machine and possibly others.

I have recently been on an expresso kick and trying to step up my game. After a lot of reading online I found that the 51mm portafilter is the size that fits the Mr Coffee Cafe Barista machine I have. Its not a high end expresso machine but gets the job done for a newcomer like me. The problem with the MCCB is that it comes with a pressurized portafilter. This portafilter allows you to not use pressurized and do it like a real cafe. It has the 3 tabs that are necessary for same connection as the OEM portafilter. First time I used it I had over filled it (novice mistake) and while it was running the pressure was able to untwist the portafilter spraying grounds and hot coffee all over the counter. This was my mistake but I suggest keeping a hand on the handle until you learn the correct amount of powder to use when making your expresso. Once I had my measurement dialed in I can leave the portafilter to itself without any worry of the handle unlockng itself. I have since run 200 cups through easily without a single repeat of the first incident. Its very sturdy, easy to clean, and gives a great cup when the grinds are done right. If you want to improve the MCCB expresso considerably this is a must have. Do some reading as there are other factors that play into the end product as well (grind quality / fineness) but at least with this portafilter you have the mandatory first piece in hand and it works with this machine flawless.

At first this was a great product. It fit my Gevi machine and mad great esspresso. Then it started spewing coffee everywhere in micro streams just like some reviewers stated. I tried cleaning it with compressed air to no avail. I ended up returning.

Edited 4/27/25 - Increased rating to 5 stars due to the amazing customer service. Just because this product didn't work for me doesn't mean that it won't work for you and your setup. Espresso is just tricky and there are so many parameters to consider. It's really well made and looks beautiful in your espresso machine, has a nice weight to it and feels solid in your hand. Truly top notch customer service that is rare to find these days. Don't hesitate to order from these guys! If it doesn't work out, they will make it right!Original Review:I really wanted to like this thing, but regardless of all the different techniques that I know and troubleshooting that I've tried, it still just squirts coffee grounds and hot water out the top whenever I remove it from the espresso machine and sometimes even leaks down the handle during brewing. Makes a massive mess. I can't seem to find the right combination of parameters that will make a nice shot of espresso without all the mess. For reference, I have a CASABREWS CM5418 and bought this portafilter because it was supposed to fit. Not at all what I was prepared to deal with!

This portafilter works as advertised, and fits my espresso machine perfectly (Laekerrt 20 Bar Espresso Maker CMEP01)very easy to clean and it is a good solidly built item.

I've used this portafilter for some months now. It does very well and looks good. It fits my Casabrews machine better than the one that came with it. I had to shop around to find a basket that I liked. I learned that you must use a pressure basket on this type of machine. I've been making consistent coffee everyday.

I don't hate it but I certainly don't love it. It's made well as far as material goes. It leaks and creates a mess though. I'm not an amateur when it comes to pulling shots of espresso and for the life of me I can't seem to get this from leaking or making a mess.3 stars because it's very nice, heavy and durable. Realistically for the actual purpose of this tool I'd give it 1 star because it doesn't allow me to pull proper shots of espresso. Bummer.