Fellow Prismo Attachment for AeroPress Coffee Maker - Enhance Your Manual Coffee Maker to Brew Espresso-Style and No-Drip Immersion Coffees, Reusable Metal Filter

While it might seem expensive for what is essentially a plastic cap, a metal screen, and a pressure valve (similar to a ketchup bottle), the Fellow Prismo is an great upgrade for the Aeropress. Crucially, it offers much better value than Aeropress's own official Flow Control cap while doing the exact same job. Its main purpose is to stop water from dripping through the filter before you press the plunger, allowing for a full immersion brew without the disaster risk of the "inverted method." It works perfectly for this. It fits my Aeropress Clear perfectly, though required a bit more force that the regular cap to screw on tightly due to the rubber seal. It's also easy to clean after, I just rinse it down and let it dry. It also adds some versatility to your filtering options: you can use just the included metal filter for a fuller body, but I personally use it with a paper filter on top to get a much cleaner cup. It handles both easily. Despite the initial price, I use it every single time I brew, making it definitely worth the investment.

I bought this for my partner who has the aeropress and he’s been really liking it. We’re not entirely sure if it actually gives a different flavour or crema but it’s easy to use and leak-proof. The small knob on top may be easy to lose but with regular careful care we’ve been fine. Good quality, fine filter that works well

I was doubtful about the claims of 'espresso style', and I was right. I'm sure this could be improved allowing a better pressure buildup like my little manual portable espresso device, but this filter just won't get close. HOWEVER, this is the only negative thing I'd say about it. This is what the Aeropress should have been like to start with: it seals the cylinder perfectly, no spills, no mess, no silly inversion needed. For that reason alone, this filter is well worth it. I've experimented a bit with different grind coarseness, water temperatures and amounts, brewing times, and there's a nice range of flavours one can get with this, worth experimenting a bit to get the style you prefer. I find the coffee is a bit more aromatic and perhaps sweeter too than when using the original attachment with paper filters, presumably due to oils otherwise stuck to the paper? In short: it makes the Aeropress a lot better to use. It's easier and cleaner. Just don't expect anything close to espresso, but that doesn't mean you cannot get a good coffee.

As far as overpriced coffee widgets go, this one is pretty cheap. It also makes a meaningful difference to the function of the Aeropress, and I can’t imagine not having one now. I use it for making espresso-strength shots with both the metal filter and a paper filter fitted. It gets used two or three times daily. The coffee through this tastes closer to espresso than the stock Aeropress (which tastes like super-strength filter coffee to me). It is just as easy to clean the Prismo as it is to clean the standard Aeropress gubbins, as long as you use a reasonable amount of pressure to compress the grounds into a puck. It also helps if you use both metal and paper filters. Basically, the Prismo seems fine with a quick rinse along with the rest of the Aeropress. I have not had it leak coffee and, for now, I feel confident pouring water into the Aeropress without a mug underneath it as long as the Prismo is fitted. So why is it overpriced? Well, it’s basically the rubber valve out of a ketchup bottle that’s fitted to an adaptor, allowing you to stick it to the bottom of the Aeropress. Oh, and a reusable filter, which softens the blow a little. As it’s based around a valve that everyone else uses as a disposable part, I have very limited hope for its lifespan. You can, of course, not get spares and Fellow who will offer a two year warranty on a kettle won’t offer you a day on this (but that’s in the UK - they’ll give you a year if you’re in the US). I’ll update and apologise if it lasts a reasonable length of time.

The Fellow Prismo Attachment for AeroPress is an excellent product. Bought on the recommendation of a friend, it does a great job of making the AeroPress easier to use, and ensuring a consistently good coffee is the result. It’s also super easy to rinse clean, and has worked well for months now.

The Prismo allows you to brew coffee with an aeropress without coffee dripping out immmediately after pouring water on the ground coffee it also allows you to brew a slightly larger volume of coffee. The big claim made for the Prismo is that the valve arrangement increases the pressure so that the coffee is more 'esspresso-like'. I didn't find that it generated any more pressure, nor did it require any more pressure on the plunger. Preparing coffe with the standard Aeropress but using 2 paper filters requires more pressure than the Prismo Of course it's possible to brew 'drip-free' coffee with an aeropress using the inverted brew method, which is my preferred method. The filter on the Prismo is slighly more difficult to clean because of the rubber ring surrounding the filter disc. Bottom line: the coffee is no better than with the standard Aeropress. On balance I'd say don't waste your money.

Niquel pour sortir un petit expresso de son Aeropress. On est pas sur un équivalent de machine italienne non plus, mai ça change un peu donc je recommande pour l'expérience

I have made coffee with this a couple of time , and it pulls a very good shot of espresso every time, however I use a paper filter along with it, otherwise I will get grounds in my coffee. I will recommend this attachment to every espresso lover ,who have aeropress

In addition to eliminating the need for paper filters and using the inverted method, the taste is in my opinion also slightly improved. Highly recommend! Can not say anything about the longevity of the product as I only had it for a few days. Update: After hundreds of coffees brewed, it still works like a charm. The metal sieve started to bend and deform very slightly under all the pressure and heat. Still completely usable though! Great product.

Overall it is great attachment especially if you like espresso style coffee. The only annoying thing is that putting a stable plunger in means very little amount of water might still escape to the cup. But it still is a huge improvement over original cap. You also get the metal filter that works quite ok and reusable.

One of my roommates bought one of the prismo attachments at our old house and I used it for a year. When I moved out, I tried to use the normal aeropress filter for a week, and ended up caving & buying a prismo because I love this thing so much. If you’re a big aeropress user this is a must. See below for my cons and pros. Cons: PRICE! Although I think it’s totally worth the money, this costs the same amount as the actual Aeropress. I get it’s a small company, but I would have liked to have paid $15, maybe $20 max for this. Fit. I have had my Aeropress for 3 years and it’s an older model. I can’t fully lock in this attachment without man handling it (it appears to be slightly too large for the groove) and so if there’s a lot of pressure in the aeropress, it’ll start to bubble coffee out of the cracks. Not a huge deal and I’m sure it has to do with the age of my aeropress. PROS: No Mess!: unlike the normal aeropress filter attachment that always seems to cause a total mess (I hope it’s not just me??), you can actually sit the aeropress upright without a cup under it with the prismo attachment on and nothing will come out until you push down the aeropress plunger. Stronger espresso- like coffee: I add in the equivalent of a scoop and a half using the aeropress scoop of finely ground coffee into the aeropress and I fill the aeropress about halfway with water. Then I stir it, and wait a few minutes while I heat up oat milk and it makes a super good latte. I am sure a coffee snob would not agree with how I use this but I like strong coffee / espresso and this seems to work. It also tastes slightly less acidic maybe? Way cheaper than buying an espresso machine! Durable: I used the prismo along with three coffee-drinking roommates every day for a year and it still looked the same as day one after that period of time and still functioned great. Reusable Filter: awesome quality, reusable filter. I think aeropress should partner with this brand and offer this as an add on with the aeropress. Even if you get it just to make your coffee making process less messy or for the reusable filter, It’s a great product and despite the price, I would recommend!