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Knock Aergrind Hand Grinder

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$114.95
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SKU: aergrind
4.5 stars, based on 35 reviews

Knock's newest hand grinder sets the bar even higher, with a compact offering that doesn't make any sacrifices on performance.

 

Designed to be even more compact and travel-friendly than its big brother, the Feldgrind, the Aergrind still features the same 38 mm coated steel conical burrs and stepless adjustment. Now, however, those burrs sit inside dual bearing mounts in a unibody milled aluminum casing. As before, grind adjustment is stepless and built into the upper portion of the burr shaft. Holding the lid in place, you can change your setting by rotating the handle, with a cutout indicating the number on the lid's dial for reference. In total we find the ideal grind range is covered by the first 5 revolutions of adjustment, with each revolution translating to about 0.7 mm of vertical travel between the burrs. Espresso, drip, and even french press grinds are accessible, however the smaller volume of the hopper and grinds catch make the Aergrind better suited to smaller doses and single cup brews.

The Aergrind is purposefully designed to fit inside the plunger of an Aeropress coffee maker, making for a compact travel coffee setup. The hopper holds about 30 grams of beans, and the grinds catch holds about 25-40 grams at a drip grind (3-4 revolutions). For cleaning, we recommend wiping down parts with a soft, damp cloth and drying thoroughly, and cleaning the burrs using a pipe cleaner or similarly soft-bristled brush.

What's in the box:

  • Knock Aergrind Grinder
  • Silicone sleeve
  • Silicone holster for grinder handle
  • Spare o-rings

Features:

  • Compact hand grinder with superior uniformity
  • Small and perfect for travel
  • Stepless grind adjustment
  • Detachable handle with holster
  • 25 gram hopper capacity
  • Made to fit inside an Aeropress coffeemaker
  • 38 mm coated steel conical burrs
  • Made of aluminum, steel, and plastic
Model: Aergrind
Burrs: Conical, coated steel
Burr size: 38 mm (ring burr OD)
Grind Adjustment: Stepless
Hopper Capacity: About 30 g
Grinds Container Capacity: About 25-40 g
Dimensions: 14.5 cm H x 4.7 cm D (without handle)
Grinder Weight: 360 g

Knock

Verified Buyer

2018-05-08T00:00:00.000Z

5 / 5 stars

Great for Aeropress!

The grinder is perfect for use with the Aeropress. I have been using it about five times per week for the last two months. It is fairly easy to use and it is not that hard to grind. It takes about 30-40 seconds. As advertised, it fits perfectly inside the Aeropress when traveling. I was skeptical that a burr grinder would make that much of a difference in the taste. I have to say, the coffee is significantly better. I tried two different single origin coffees using a blade grinder and the Aergrind and the burr grinder made a much richer cup. I would not recommend it for people looking to make multiple cups of coffee as the grinder only holds between 25-30 gms.

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Verified Buyer

2018-04-20T00:00:00.000Z

5 / 5 stars

Amazing Hand Grinder

I love this grinder! So glad I decided to invest a bit more and get an excellent quality grinder. (Originally was considering a Hario.) The handle does not have "knock" stamped on it like in the product photo. I prefer it without the stamp. Visually, it‰Ûªs very sleek. The build quality is excellent. It's very sturdy and feels like it is going to last forever. Uniform grinds even at coarse settings and fast. I'm a woman with medium-sized hands and I don't find the Aergrind difficult to use at all. It fits well in my hand and the amount of effort needed to crank the handle is easily managed. If I attempt to grind more than 22-25g of coffee, it's too much for the bottom compartment. Easily remedied by emptying the bottom part way through. I use it mostly for pour over or French press. Love the analog experience of hand grinding coffee for my cuppa each morning. The smell of the fresh ground beans wafting up as it‰Ûªs ground. There is a really satisfying way feel to the way it grinds.

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Verified Buyer

2018-03-25T00:00:00.000Z

5 / 5 stars

Knock Aergrind

If you are looking for an exceptional burr grinder under $120, look no further. I love having a grinder that does not retain a significant amount of coffee grounds (much less than 1 gram). In contrast, my Capresso Infinity grinder required me to remove its bean hopper and central burr to remove any retained coffee grounds, which sometimes amounted to 3 grams. I mostly make pour over coffee, and the Aergrind's stepless grind adjustment gives my coffee much more clarity than my Capresso grinder. Be aware the Aergrind will generate a lot of static when grinding its first pound of coffee beans. After the first pound, the static issue goes away. Overall, it is a great choice for a manual grinder.

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Verified Buyer

2018-02-07T00:00:00.000Z

5 / 5 stars

Excellent Quality

Fast for a hand grinder, and, more importantly, the grounds are uniform. I can feel the quality when turning the handle. Smooth turning and solid construction.

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Verified Buyer

2018-02-07T00:00:00.000Z

5 / 5 stars

Great portable grinder

Very impressed by the build quality and grind consistency. No wobble at all. Much quicker to grind than my old hand grinder (Hario). Would recommend!

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Verified Buyer

2018-01-26T00:00:00.000Z

5 / 5 stars

Super well built grinder

I am super pleased with this grinder. Its everything everyone has said...superior grind. I now love my Aeropress again. I have only ONE wish - that single plastic top should be made of aluminum or stainless steel...(aftermarket part?)

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Verified Buyer

2018-01-23T00:00:00.000Z

5 / 5 stars

Great grinder

Powerful, compact, and precise.

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Verified Buyer

2018-01-22T00:00:00.000Z

5 / 5 stars

Getting good grinds thus far

I have a baratza virtuoso as my usual everyday grinder, however the person i live with does not work on tuesday and thursday so i needed something quiet to grind coffee on those mornings. Thats where the Aergrind comes in. I was skeptical of a handgrinder at first, but it really doesn't take much effort! 20 grams of coffee takes about 40 seconds to grind. much quieter than the virtuoso as well. I haven't put a whole lot of beans through it yet, so i am sure it will improve, but so far so good!

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Verified Buyer

2018-01-20T00:00:00.000Z

5 / 5 stars

Scottish handiwork

i have only had my aergrind for a week or two; so far it has been amazing. Transitioning from a Baratza Encore, I am very pleased with the grind particle consistency; i am using his grinder for medium to large drip brews (V60 and Chemex primarily). Even 0.75L (~26.5oz.) brews are clear and timely, with no noticeable increase in choking the filter from my Encore. Stepless adjustment is great too.

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Verified Buyer

2018-01-18T00:00:00.000Z

5 / 5 stars

You can really taste the difference!

It's crazy how good this thing is. Love how much faster this is over my old hario minimill, and I can't ever go back. I'm tasting notes in my coffee that I've never tasted before, and for that, it's totally worth it.

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Verified Buyer

2018-01-14T00:00:00.000Z

5 / 5 stars

Great Grinder!

Love the Aergrinder! Smooth, even grind!

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Verified Buyer

2018-01-06T00:00:00.000Z

5 / 5 stars

Complete game changer for espresso

With the introduction of the Aergrind by knock, the entry level espresso world becomes a lot more accessible for everybody. There are no good espresso grinders out there under $120, and unless you want to take a gamble with questionable build quality by Breville, no grinders that grind the full range from espresso to French press under $300. The Aergrind is amazing for espresso and the stepless and fine adjustments let you really dial for your machine, something that can't really be done with the Baratza Encore in the same price range. I use around 1:4 to 1:9 on my old and cheap Coffee Gaggia and can pull shots between 20 and 30 seconds while my old Hario mini mill never got fine enough to break 15 seconds. Even if you're not using this for espresso, the grind consistency improvement over Hario hand grinders is huge, bringing out so much more clarity in every cup of pour over and Aeropress. The Aergrind has something for everybody who has been using a grinder under $50 and is looking to move up.

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Verified Buyer

2018-01-05T00:00:00.000Z

5 / 5 stars

A very nice grinder

I purchased this grinder as a present for my coffee minded significant other. It's a huge upgrade over using an electric blade grinder in terms of grind quality, and a very cost efficient option over other burr grinder options. The size makes it ideal for a single-coffee drinker household. Performing the grind is pretty quick and painless. It comes well packaged and Prima shipped it quickly with plenty of time to spare before the holidays. The only downside is that the Knock came with no instructions at all; we had to spend some time to watch video tutorials / read guides on the Feldgrind and try to apply it to this model to get started.

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Verified Buyer

2018-01-01T00:00:00.000Z

5 / 5 stars

Wonderful for making one drink

I was considering getting one of the bigger hand grinders (Lido, Knock, etc), but ended up buying the Aergrind this because I never grind more than 18g at a time for espresso. This option was also more affordable! This is a very compact, solidly built grinder. I have not noticed any wobble while turning the burrs, and grounds seem to be very consistent. Grinding my usual 16g of espresso takes less than two minutes of reasonably fast grinding - much less work than my old Hario Skerton. My only complaint is that removing the bottom compartment to retrieve grounds can be difficult sometimes. Overall not a huge issue, just adds a few seconds to the work sometimes. Overall, wonderful grinder for those who only make one drink at a time. For serving multiple drinks I'd go for one of the bigger options, but for my purposes this grinder is perfect.

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Verified Buyer

2017-12-30T00:00:00.000Z

5 / 5 stars

Impulse and Regret

My Porlex mini had become a regular travel companion. Snuggled into my Aeropress, we'd head around the world together with some bags of beans and a couple changes of clothes. Hotels would become clandestine coffee labs as I learned and re-learned how to boil water with various different devices not meant for the job. And then I started hearing about this Aergrind and was consumed with an irrational lust. $100+ for a travel grinder? But the one I have was less than half the price works great. I mean it works well. Well, it works. The Aergrind kept tempting me, taunting me, but it was always out of reach and I didn't mind. But then Prima got some in. And Prima was having a holiday sale. And before I knew it there was a confirmation email at the top of my inbox and a growing sense of buyers remorse in my stomach? Did I make a mistake? When the Aergrind came the remorse immediately became regret. Regret that I had ever felt remorse. Regret that I had put up with an inferior product. Regret that I had ever doubted. Find an Aergrind. Hold it in your hands. It feels amazing. The quality of the craftsmanship on this thing resonates into your fist. It's a smooth grind, you can feel the power of those easily adjustable burs. Welcome to the family, little Aergrind. Let's travel the world together and jitter into adventure.

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Verified Buyer

2017-12-29T00:00:00.000Z

5 / 5 stars

Very good value

Purchased to gift, but had to test before letting go. At a drip setting, med/dark roast, was very smooth grind, little effort needed, and quick. Took two loads in the grinder to fill the basket, but was still fast. With a bit of practice, should be even faster. There was a bit of static so the ground coffee was piled on the sides of the bucket, but a tap on the base and all the coffee came out easily. Very tempted to get another for myself, but SO suggests that three grinders may be enough for now :)

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Verified Buyer

2017-12-28T00:00:00.000Z

5 / 5 stars

best travel grinder

just back from three weeks on the road with this grinder and I have to say that it is excellent and a major improvement over the hario I used in the past: better grind consistency and much easier and faster to grind. Highly recommended! I only used one grind for the aeropress so can't comment on its ability to change grind settings.

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Verified Buyer

2017-12-26T00:00:00.000Z

5 / 5 stars

Best bang for buck

I bought this because I was in search of a quality grinder to meet my needs varying from Aeropress to 8 cup Chemex. I have a Baratza Sette 270 which I bought for my 30th birthday last year based on the manufacturer claiming that it could grind coarse enough for a Chemex. I have beer really disappointed with it, and have a very hard time not getting a bitter, and muddy cup. I am sure it‰Ûªs great for espresso, but I don‰Ûªt do espresso at home. I read the reviews about this little guy, and figured I‰Ûªd give it a chance because of the price point. This thing is amazing. I look forward to using it every morning. It takes about a minute of grinding at a reasonable pace for my 22g dose for my V60. The consistency is far superior to a Baratza Maestro plus that I retired a few years back. It cranks very smoothly. The first hang grinder that I ever purchased was a Hario Skerton. The burr wobble was terrible, and the burrs didn‰Ûªt have an agressive cut so it took like 5 minutes to grind a normal dose. The next hand grinder that I owned was the HandGround hand grinder. I had backed it on Kickstarter. It did grind much quicker, and is superior to the Skerton. I didn‰Ûªt like the ergonomics, and the consistency isn‰Ûªt as good as the Aergrind. The only negative about the Aergrind is the small capacity, but considering that it is specifically designed to fit inside of an Aeropress for travel Knock couldn‰Ûªt really do more. 22g is about max capacity for this grinder. Overall, I am very please with my purchase.

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Verified Buyer

2017-12-22T00:00:00.000Z

5 / 5 stars

Excellent manual grinder

Tested the grind for aeropress, chemex and espresso and I'm extremely pleased with the results. The grind is very consistent with not many fines. The speed for grinding is pretty fast and not fatiguing. As many people agree, I wish the dial cap was made of metal. Otherwise, very solid and quality craftsmanship.

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Verified Buyer

2017-12-22T00:00:00.000Z

5 / 5 stars

Knock Aergrind Grinder

Another missing link to great coffee. Paired with Aero Press CoffeeMaker a hard to beat duo.

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