"Switch" Immersion Dripper, Size 03

Functionality & Brewing Flexibility I already own the standard non-immersion V60 dripper, but the Hario Switch is an absolute game changer. Having the ability to toggle between full immersion and standard pour-over gives complete control over extraction and flavor profiles. Immersion & Agitation: Flipping the switch closed lets the coffee steep in hot water for a richer, more uniform extraction. Giving it a gentle stir and letting it sit dramatically improves sweetness, body, and overall cup clarity. Flow-Through: If I’m using a finer grind or want a brighter, faster drawdown, I can just leave the valve open and let it drop straight through like a classic V60. Fit & Compatibility (Moccamaster Integration) Standalone or Carafe Use: It seats securely over standard mugs and range servers. Moccamaster Hack: I use this alongside my Moccamaster—I simply remove the machine's stock brew basket holder and set the Hario Switch directly on top of the carafe. It aligns great and brings classic Hario artisan quality directly into my drip workflow. Size (Size 03 Capacity) The 03 size provides plenty of volume capacity, easily holding larger brews without overflowing during full immersion steeps. It’s the perfect size if you want the flexibility to brew larger single mugs or multiple cups at once. Installation, Maintenance & Durability Setup & Teardown: The glass cone fits securely into the heatproof silicone base with the stainless steel ball valve. Clean-Up: Cleaning is a breeze. A quick rinse handles daily maintenance, and the whole assembly can be taken apart in seconds for a deeper wash. Build Quality: The borosilicate glass is durable, retains heat well, and delivers the clean, premium results Hario is known for. If you love the clarity of a V60 but want the foolproof consistency and rich extraction of immersion brewing, the Switch is worth every penny!

This is a borosilicate glass immersion dripper. I'm moving to glass and ceramic vessels due to concerns of microplastic leaching into hot brewed beverages. (I still use my Aeropress for making extra strength coffee as the base for cappuccinos, etc. I could switch to one of the new glass or steel Aeropresses, but they're expensive, and I'm not going to invest in one for a once-monthly cappucino). Anyway, I tried a ceramic pour-over first. It is fine, but I lack a gooseneck kettle, and ended up with inconsistent results. My son has a glass CleverDripper, and it makes great coffee, but CleverDripper no longer makes them. They're still available on SweetMaria's, last I looked, but with shipping costs I think the all-in price was close to $70. The size 3 Hario Switch is currently on sale on Amazon for $32, so I went with it. The Switch has only a small silicone or neoprene gasket at the bottom of the brewer, into which a steel ball rests to allow for the immersion brewing. That's the only "plastic" in contact with the brewing coffee, as far as I can tell, so I consider it mission accomplished for avoiding plastic while brewing coffee. I do wonder about the longevity of the little tab - but other than it the rest of the Switch seems sturdy enough. Just don't drop it, because, glass. As to coffee made by the Switch- it's great! I use James Hoffmann's new recipe. Just watch his video on YouTube. If you don't want to do that, using a scale with tare function, I put the Switch on top of my coffee cup, 200 grams of 210 degree water into the Switch, then quickly add 11 grams of fresh ground coffee (I have a Capresso electric grinder, set to the point between the medium and the fine grind ranges). Quickly submerge any floating grounds, wait two minutes, lightly stir the brew or jostle the Switch, and after another 30 seconds depress the tab that lifts the steel ball off the gasket. Putting the water into the Switch before the coffee allows for a quicker draw down, but you can put the coffee in first if you prefer. This results in a wonderful 7 ounce cup of coffee. Sometimes I want a bit bigger cup, and use Hoffmann's setting of 14g of coffee to 250 of water. The Switch size O3 can hold more, if you want an even bigger cup. The size 2 is only good for smaller cups like the ones I brew. I roast my own coffee, but sometimes I buy organic beans from Mom's Organic Grocery, or Trader Joe's. I used to always add a bit of cream to my coffee, and still do with dark roasts when using the Switch, but have found the cup is so clean and balanced when using good beans roasted light to City Medium it's better without cream. My son (and James Hoffmann in his videos) keep telling me I need a better grinder that will result in a more uniform particle size, with fewer fines. Doing that will produce an even cleaner cup. But, that's another day, some more research, and a few more dollars. So far I'm leaning towards the KinGrinder 6, a hand grinder that gets very good to great reviews. They cost about $110, so I'm hoping they'll go on sale soon. For another $50-$100 I could get an even better hand grinder, and maybe one of those will go on sale. But, for now, the Switch has greatly increased the quality of my morning cup, and I couldn't be happier.

This is precisely what we used to talk about in coffee groups 20 years ago, optimizing the extraction environment. You've got all of these dynamics in play, trying to minimize tannin extraction, maintain efficient use of beans, and minimize degradation while getting the ideal heat, time, and concentration necessary to pull out all of the good stuff - which has a whole range of solubilities. A complex matrix like coffee is fascinating to experiment with, and this is just what my 'lab' needs for this endeavor! I have roasted my own coffee for decades, and have used literally hundreds of different extraction devices, but this one stands out as ideal to me. I have gone back to my Hario glass pourovers again and again from whatever shiny new device temporarily distracted me, but I'm convinced that this one has ended the search. The main drawback I find with a normal pourover is getting the grounds saturated and fully immersed results in a lot of poorly extracted product at the beginning of the extraction, periods of poor immersion as the volume changes during the process, and then either subpar extraction time resulting in loss of body or wide temperature swings as the process is pulsed to maximize the time. Other devices of this ilk are either not glass or have poor "switches". This thing works GREAT. I can fill it, stir for about 45 seconds or so, then open the switch and resume pouring into it to maintain the full volume in the filter until I reach the desired amount. When I received this, I was impressed with the design and the ability to grab it around the base of the cone. That is more intuitive and natural than trying to grab a handle loop on a regular Hario dripper to me. The first batch I brewed was using some Panamanian coffee that I had been drinking for a couple of weeks, but it tasted SO MUCH BETTER - there were nutty notes that had been missing and a cinnamon-like flavor was much more pronounced. I was truly astounded by the difference this switch dripper made. I bought it mostly for the size, as I had been using a Hario 02 for awhile but really needed a larger cone. A regular Hario 03 is less "wieldy" than this, and trying to stir while pouring and stabilizing it requires more agility. This baby sits solidly on the carafe while pouring and stirring. Seems solid and easy to clean. I was a tiny bit hesitant about the price at first, but I'm glad I bit, this thing is going to get a lot of use and will undoubtedly send several other devices to the thrift store.

I use it every day and it works great. Have used it for pourover once or twice, works fine too. Perfect size for if you want a large-size coffee or regular size, I would not get any smaller for sure. If two people wanted a coffee regularly I would probably scale up to the next biggest size. There's really no downside to getting a larger one since you can always just use less grounds and water. I guess the size of the unit itself would be the only consideration, but I just keep it sitting in a small mug on the kitchen counter when I'm not using it. The paper filters it comes with are amazing, like really high quality. In terms of brew speed, it kind of depends on how you brew (and your grind size). If you don't shake it before you press the button, the grinds stick to the wall; if you do shake it, they'll fall to the bottom which I think results in a longer brew time. But ultimately I don't care as I just hit the button and walk away, and it drains into my insulated mug, so I can come back anytime to piping hot coffee. The other thing that's amazing about this is how the bottom is flexible rubber (or silicone?) with a little cut-out piece, so it will conform to smaller-opening mugs/cups. It squeezes perfectly into my mug which I didn't think about before I bought it but I realize now it could even squeeze into slightly smaller ones in theory. On taste: obviously this is subjective but I like it better than the aeropress. Because there's no stopper to fumble around with, you just put in your grounds, and then pour the water at any time, press the button at any time. You could even in theory use a little spoon to break up the grounds instead of a shake. So I feel like it's easier to tweak to get what you want. I notice that small adjustments in amount of water I use, brewing time, and pre-button-press shake, make a drastic change in taste, whereas with the aeropress my adjustments weren't as dramatic. On cleaning: I think this is easier to clean than the aeropress. Basically all I need to clean is the glass, which is wide so it's easy to scrub. There's not really any places for coffee to get trapped. Overall this is my favorite coffee brewer I've had. I'm kind of amazed nobody I know uses this. It's so simple and effective.

Excellent coffee brewer. I use every day. Most of the time, not even for immersion brew. I just use it like a v60, but it’s so much easier to preheat this brewer by flipping the valve closed. Nice to be able to make immersion brews, too. Especially when I have only a little bit of a coffee and don’t want to waste any dialing it in. The size 3 is good for 1-2 people. When using for immersion, the extra space is useful compared to a size 2 v60.

This is the third full immersion dripper I've tried. I started with a Clever, which impressed me at the time, but I had a few problems with leakage and at some point I decided that I no longer felt like brewing hot coffee in plastic. Next I moved on to the Bonavita dripper, which was made of porcelain and had a very simple and effective release lever. The Bonavita had great heat retention, used standard #4 filters, and was easy to use. It was my driver for years but then one day I dropped it on the floor, and it's been discontinued, so... Here we are. My next immersion dripper, Hario. As compared to my previous favorite: - Like the Bonavita, the Hario dripper doesn't put my hot coffee in touch with plastic. YAY! - Unlike the Bonavita, this dripper uses nonstandard filters. These are more expensive, and I'm also not a fan of the thicker paper as compared to the brand I was using with the Bonavita (Filtropa), so I'll give this a BIG NAY. At least I'm not getting too much paper taste. (But more on taste in a moment.) - The Hario glass seems to have less effective heat retention than the Bonavita's porcelain. I can't prove that but I just don't feel that I'm getting a good heat up without a lot more initial water pouring. Not sure what the net impact is but I'll give this a MEH. - The Hario, unlike the Bonavita, is super-easy to completely disassemble and clean. Huge YAY here. My Bonavita was somewhat grungy inside, as was revealed after it shattered. Ew. - The Bonavita had significantly more water capacity. I can't brew more than 24g of coffee in the Hario, whereas I used to be able to go over 30 in the Bonavita. NAY. - No lid. The Bonavita didn't have one either. Clever for the win here! Why can't we get a nice lid and keep the water hot and contained, coffee dripper companies? Actual coffee rating? Well, here's where things go totally south for Hario. I've simply not gotten very good results with the Hario to date. I'm getting really sharp and bitter cups, with the same coffee and procedure that used to render excellent results with the Bonavita. What's different? First of all, the geometry of the dripper, which I theorize concentrates too much of the drainage through the narrow tip of the coffee at the end, thereby causing overextraction at that point. Second, the thick Hario paper and (perhaps) not well engineered interior, which cause a very long drainage time, thereby exacerbating the overextraction problem. No paper taste at least. So where does this leave me? Not immersion brewing all that much; I'm sticking with pour-over from my Kalita Wave for now and just using the Hario on occasion when I'm bored. I'm hoping that James Hoffmann, who says that he is a fan of the Hario, will create a guide to using it that will help me get a better result. While I wait for that, I'm not going to bother drinking too many cups of really bad coffee. So in summary: I weep for the loss of my precious Bonavita, I can not really recommend this thing at the moment, and also looking back on this review it's apparent that I probably need to drink less coffee. Should I crack the code on getting better results from the Hario I'll come back and update the review. Until then, happy brewing! --- Update, many months and many brews later: I've finally cracked the code on this thing. Full immersion with ~50% of your target water, for two minutes. Then drain and go pourover for the other 50%. This combination of the two seems to be the key: I think it allows the immersion to do its work, and then rinses the grounds during the pourover stage to ensure full extraction. It produces a really nice and balanced cup, with sweetness, acidity, and full aroma -- all of the things I was missing when I was first playing with this. Upgrading from 3 stars to 4 stars, but it took me a lot of experimentation to get here so I'm not giving a full 5 even though I'm pretty happy with brew quality at this point.

Here’s the deal! I own a moccamaster coffee maker, this brand is considered the top coffee machine made worldwide. Before that, I had a Bonavita maker, which is in the top two or three. Yes! I’m a coffee snob. I order my coffee online, expensive, yes! I won’t use coffee older than a month from roasting date. The Hario switch makes coffee BETTER than any expensive coffee maker, period! Plus you can adjust, and Taylor your brew. The first time I used it I was very surprised how great the cup tasted, the subtle nuances, sweetness, and body. Plus it’s EZ. An electric kettle helps, like a Fellow, with a timer, speeds everything up. Save your money and get this inexpensive way to make coffee….. but only if you want the perfect cup!

The best pour-over device I’ve ever used is the one with the ball mechanism. It also prevents overfilling your cup, which is a huge plus. :)

I love this product. The switch works really well and opens up so many opportunities to explore different ways of brewing coffee. The glass is of high quality and the rubber part does protect the hand from the heat. For smaller brews: 10-16 g of coffee or 200-250 mL of water, I still use the Hario V2 (80% of the time) or the Muji dripper (20%). I find that because the V3 has a larger height, the water from the kettle starts going turbulent when it hits the surface of the bed. It's not a huge difference, but I still prefer the smaller v2 version. For larger brews, 20+ g of coffee or 300+ mL, this is my go-to (95+% of the time). I've tried different drippers, but this is definitely the sweet spot, giving me the opportunity to use immersion, percolation, and a hybrid between the two. Definitely no regrets in purchasing; I highly recommend it.

The glass material is nicer than the clever drippers plastic materials. I bought this because the little feet and lid both broke on my clever dripper. I loved it but this is a great replacement. I love the switch and experimenting with different recipes that mix immersion and drip filter.

Als Geschenk für meine Frau gekauft und sie liebt es. Die Espressomaschine steht seitdem in der Ecke, leicht beleidigt. Das Prinzip ist denkbar einfach: Schalter zu, heißes Wasser und Kaffeemehl rein, 2 Minuten warten, Schalter auf. Der Kaffee läuft durch den Papierfilter in die Tasse, ohne Kaffeesatz, ohne kompliziertes Schwenken beim Aufgießen. Ergebnis ist klar und aromatisch, deutlich besser als ich erwartet hatte. Die Größe 03 fasst in der Praxis locker 400 ml, ideal für 1 bis 2 große Tassen. Wir kaufen die passenden Hario V60-03 Papierfilter dazu, die gibt es problemlos überall. Das Glas ist hitzebeständig und fühlt sich wertig an. Der Schalter selbst ist Plastik und macht nicht den robustesten Eindruck, funktioniert aber tadellos. Man greift halt etwas vorsichtiger dran als an den Rest. Reinigung ist kein Thema: Filter raus, kurz ausspülen, fertig. Für alle die guten Kaffee wollen ohne große Technik darum, klare Empfehlung.

Je ne peux plus m'en passer. Je pense que ca apporte beaucoup de pouvoir faire de l'immersion selon les cafés.

Goed product maakt lekkere koffie :)