Ascaso H64 All-Purpose Home Coffee Grinder Review: Is It Worth It?
Nice to see you, I'm Sam. The Ascaso H64 is an electric burr grinder with 64 mm (2.5 in) flat steel burrs. Ascaso builds it in Barcelona for espresso and other brews. Ascaso launched it in December 2023. The US model runs on 120 V, costs $895 and ships with a 300 g (10.6 oz) hopper.
My baristas talked for weeks when the Niche Zero reached home baristas in 2017. The H64 grinds 2.3 to 2.5 g (0.08 to 0.09 oz) of coffee per second and stores three timed doses. Owners praise the quiet motor, the speed and the repeatable doses. The stepless ring covers fine espresso to coarse cold brew. Retention has no measured test, and the available estimates disagree.
Ascaso rates the motor at 60 dB. The burrs last for 400 to 600 kg (880 to 1,320 lb) of coffee. The Turin DF64 and the Mahlkonig X64 SD both cost less. The final verdict weighs the $895 price against the thin independent testing. This review explains timed doses, single-dose hopper and burr life, sponsor free.
What Is the Ascaso H64 Grinder?
The Ascaso H64 grinder is an electric burr grinder with 64 mm (2.5 in) flat steel burrs, built by Ascaso in Barcelona for espresso and other brew methods. Ascaso launched the model in December 2023.
The H64 is a timed-dose grinder. The motor runs for a set number of seconds and does not stop at a target weight.
The grinder sits on the counter with a 300 g (10.6 oz) bean hopper. A second, smaller single-dose hopper swaps in when only one dose of beans is needed. Ascaso states that both the 300 g hopper and the single-dose mode come with the grinder. The same machine therefore serves hopper and single-dose habits.
Ascaso is a family-owned Spanish brand founded in 1962 by Jesus Ascaso. The brand makes espresso machines and grinders for homes and cafes. Espresso Parts is the exclusive US distributor and sells the H64 in black and white.
The US model runs on 120 V and is made for home use only. The distributor states that commercial use may void the warranty.
Ascaso's manual lists CE marking and sells the H64 in 230, 120 and 100 V versions. A 230 V unit does not match 120 V US mains. Buyers in the US should choose the 120 V model.
Who Is the Ascaso H64 For?
The Ascaso H64 suits home baristas who pull espresso daily and want a grinder with repeatable timed doses. The 64 mm flat burrs and the stepless ring target buyers who have outgrown a stepped entry grinder.
Buyers who brew pour-over on weekends also fit. The single-dose mode and the coarse end of the dial cover filter coffee. One machine handles both routines.
Households that value low noise fit as well. Ascaso rates the grinder at 60 dB. Early risers can grind without waking the rest of the house.
Best Fits:
- Daily espresso drinkers who want repeatable doses
- Weekend pour-over brewers who want one grinder
- Households that need a quiet motor
What Are the Ascaso H64 Specs and Features?
The Ascaso H64 specs and features list 64 mm steel burrs, a stepless ring and three timed doses. A manual mode, a 3-digit display and physical buttons run the controls.
The burrs are tempered steel. The stepless ring lets the user change the grind by tiny amounts instead of fixed clicks.
The housing is aluminum. The grinder measures 8.4 x 5.5 x 13.7 in (215 x 140 x 350 mm) and weighs 15.4 lb (7 kg). The 300 g (10.6 oz) hopper, dosing cup and cup fork come in the box.
Power figures differ between sources. Ascaso's manual lists a 245 W motor running at 1,350 or 1,650 rpm. The US distributor lists 280 W.
Both sources give a grinding speed of 2.3 to 2.5 g (0.08 to 0.09 oz) per second for espresso. Ascaso's own product page also shows 245 W in one place and 280 W in another. The manual gives the two speeds without saying why, and no source explains them.
Key Specs:
| Spec | Value |
|---|---|
| Burrs | 64 mm flat steel |
| Adjustment | Stepless ring |
| Hopper | 300 g (10.6 oz) |
| Espresso speed | 2.3-2.5 g (0.08-0.09 oz) per second |
| Weight | 15.4 lb (7 kg) |
| Noise | 60 dB |
The outlet has a light, and a detachable magnetic tray sits below it. The portafilter fork moves up and down to fit different baskets.
Holding the S1 and S2 buttons together for 3 seconds opens the setup menu. The setup menu holds a standby timer from 0 to 600 minutes. A factory reset restores the default doses.
The three dose modes are D1, D2 and a custom dose called dC. A total shot counter and a partial shot counter track use. Mode D2 adds two coffees to the counter.
How Does the Ascaso H64 Single-Dose Hopper Work?
The Ascaso H64 single-dose hopper replaces the 300 g hopper so the grinder takes one dose of beans at a time. The hopper attaches with a single fixing screw. A lid sits on top.
The cup fork holds the dosing cup under the outlet. Holding the pulse button in continuous mode grinds until release. The display counts the seconds, so a scale can confirm each dose.
A bellows on the single-dose hopper blows leftover grounds out of the chamber. The bellows helps when beans change often. An anti-static system also works against clumping in the grounds.
How Well Does the Ascaso H64 Grind?
The Ascaso H64 grind performs well on speed and range, from fine espresso to coarse cold brew. Espresso output runs at 2.3 to 2.5 g (0.08 to 0.09 oz) per second, so an 18 g (0.6 oz) dose finishes in about 7 to 8 seconds.
The stepless ring is what gives the grinder this range. It has no fixed clicks, so the buyer can stop at any point along the ring. The factory sets the ring to a middle point. Turning it clockwise gives finer grounds, and turning it counterclockwise gives coarser grounds. Small steps work best, because each small turn changes the grind.
Humidity changes the right setting. A humid room needs a coarser grind. Ascaso advises a small daily adjustment.
The beans and the burrs change it too. Burr wear and bean type both move the right setting. The manual asks owners to check the grind point from time to time. Daily checks suit anyone who pulls espresso every day.
Every adjustment carries one safety rule. Never turn the ring to its limit while the motor is off. That move can jam the grinder. Turn the ring only while the motor runs.
Does the Ascaso H64 Grind Well for Espresso?
Yes. The Ascaso H64 grinds well for espresso, with stepless dialing and timed doses that repeat within about 0.2 g (0.007 oz). One owner reached the right grind in four to five shots.
Stepless dialing means the grind size can be set at any point, not just at fixed clicks. That makes fine changes possible. Dose times change in 0.1 second steps, and a longer time gives a larger dose.
The manual suggests a first dose time that yields about 7 g (0.25 oz) of coffee. It pairs that test dose with 20 to 25 seconds. That pairing does not match the stated rate of 2.3 to 2.5 g (0.08 to 0.09 oz) per second. Because of this, the first doses should be weighed, and the time should be set from the scale.
The same owner came from a G-iota D54 grinder. This owner noted a large taste gain in the cup. This owner also found the H64 quieter and faster.
The grinder drops grounds straight into the basket. The adjustable fork holds the portafilter under the spout. A filter holder fork and a cup fork both come with the grinder.
Can the Ascaso H64 Grind for Pour-Over and French Press?
Yes. The Ascaso H64 can grind for pour-over and French press because the stepless ring turns out to coarse settings. The distributor lists the range as fine espresso to coarse cold brew.
Single-dose mode suits filter brewing. The cup fork holds the dosing cup. Continuous mode grinds for as long as the button is held. A scale then confirms the weight of the dose.
No independent filter test of the H64 turned up. Particle size charts and brew tests are missing. The coarse range is therefore a claim and not a measured result.
How Much Coffee Does the Ascaso H64 Retain?
The Ascaso H64 may retain a few grams of coffee, but no measured test confirms how much. One retailer estimates 0.5 to 1 g (0.02 to 0.04 oz) of grounds left in the burr chamber under typical use.
The distributor calls retention modest for a hopper-fed flat burr grinder. That statement is marketing copy and has no number, so it cannot confirm or challenge the retailer's range. One video commenter reported far higher retention, near 8 g (0.28 oz). That figure is a single report, and it sits well above the retailer's estimate.
The bellows hopper reduces what stays behind. Single-dose use with a purge helps most when beans change. Because the estimates disagree, buyers should weigh the output after the first grinds.
What Do Owners Say About the Ascaso H64?
Owners say little about the Ascaso H64, and the few reports lean positive. AscasoUSA shows a 4.0 out of 5 rating from one review on the black model. The white model has no rating.
Seattle Coffee Gear lists the H64 with no reviews. A shopper finds most feedback in forum threads and video comments. Those posts are short and few.
A German forum thread in 2025 shows how thin the coverage is. It opened with a buyer asking for experience reports. Few existed after more than a year on the market.
The reports that do exist lean positive. One owner moved to the H64 from a G-iota D54 and praised the quiet motor and the speed. The programmed dose held within 0.2 g (0.007 oz). The owner judged the taste gain large.
The hardware also gets credit for feel in the hand. A shop visitor called the build quality good. The hopper-to-single-dose swap drew approval too.
What Are the Common Ascaso H64 Complaints?
The common Ascaso H64 complaints cover the adjustment ring, the declumper and the look. Evidence is thin, so no single complaint counts as proven.
The following are the three complaints raised so far:
- Adjustment ring: A shop visitor found the grind adjustment ring unconvincing. The visitor could not test the grinder at length. The doubt concerns the feel of the ring and not a failure.
- Declumper: A US reviewer who praised the grinder reported that the declumper can clog quickly. That reviewer now mists the beans with water before every grind.
- Look: The same shop visitor did not like the design. Taste in looks varies, so this is a matter of preference.
The reviewer's water-mist habit is the one reported workaround. The other two rest on a short visit and personal taste.
How Does the Ascaso H64 Compare With Rivals?
The Ascaso H64 compares with rivals as the priciest 64 mm grinder here, at $895. The Mahlkonig X64 SD costs $599, the Turin DF64 costs $354 to $399 and the Baratza Encore ESP costs $199.95.
The Encore ESP uses 40 mm conical burrs and 40 stepped settings. Settings 1 to 20 cover espresso. Its hopper holds 227 g (8 oz). The H64 offers 64 mm flat burrs and a stepless ring.
The Mahlkonig X64 SD also uses 64 mm flat steel burrs. Mahlkonig claims zero retention and lists a 30 g (1.1 oz) standard hopper. The X64 SD lists no timed dose presets. The H64 adds a 300 g hopper and three timed doses.
The Turin DF64 Gen 2.7 has 64 mm flat burrs and a stepless dial. Cliff and Pebble lists it from $354 to $399 with a one-year warranty. The DF64 is the lowest-priced 64 mm grinder here.
| Grinder | Burrs | Adjustment | US price |
|---|---|---|---|
| Ascaso H64 | 64 mm flat | Stepless | $895 |
| Mahlkonig X64 SD | 64 mm flat | Stepless | $599 |
| Turin DF64 Gen 2.7 | 64 mm flat | Stepless | $354-$399 |
| Eureka Mignon Specialita | 55 mm flat | Stepless | $549-$649 |
| Baratza Encore ESP | 40 mm conical | 40 steps | $199.95 |
How Does the Ascaso H64 Compare With the Eureka Mignon Specialita?
The Ascaso H64 costs about $246 to $346 more than the Eureka Mignon Specialita and uses larger burrs. The Specialita has 55 mm flat burrs and a US price from $549 to $649.
The Specialita runs a 310 W motor at 1,350 rpm. It weighs 5.6 kg (12.3 lb) and holds 300 g (10.6 oz) of beans. The H64 weighs more, at 7 kg (15.4 lb), but its hopper holds the same amount.
The H64 ships with a single-dose hopper and a dosing cup. These parts widen what the grinder can do. The Specialita is the cheaper route to a flat burr grinder.
How Do You Clean and Maintain the Ascaso H64?
Owners clean and maintain the Ascaso H64 with a weekly hopper wash and a regular exterior wipe. Always switch the grinder off and unplug it before any cleaning step.
Remove the hopper and wash it with a damp cloth or warm soapy water. Rinse well. Dry the hopper fully before it goes back on, since coffee oils leave a residue.
Wipe the exterior with a soft cloth or brush, lightly dampened with soap and water. Abrasive cleaners and pads damage the finish. No part of the grinder goes into water.
Weekly Cleaning Steps:
- Switch the grinder off and unplug it.
- Remove the hopper.
- Wash the hopper with a damp cloth or warm soapy water.
- Rinse the hopper and dry it fully.
- Wipe the exterior with a soft cloth or brush.
Dose times drift when burrs wear or when roast level and humidity change. Re-check the dose time now and then. A fresh calibration restores the weight.
Ascaso's manual asks owners to clean every part that touches coffee at least once a week. The CP setting counts shots since the last reset. The rES setting clears that count and restores factory settings.
How Long Do the Ascaso H64 Burrs Last?
The Ascaso H64 burrs last for 400 to 600 kg (880 to 1,320 lb) of coffee before replacement. A burr is the metal part that crushes the beans, so it wears down as more coffee passes through it.
Take a home user who grinds 40 g (1.4 oz) a day. That adds up to 14.6 kg (32 lb) a year, so 400 kg lasts about 27 years. Home use rarely wears the burrs out. Café-level volume would wear them far faster.
Worn burrs show up as lighter doses from the same timed setting. Grind quality declines, and espresso quality declines with it.
A replacement needs the grinder switched off and unplugged. Espresso Parts, the US distributor, lists a video that shows how the burrs come apart. Seattle Coffee Gear and Ascaso USA both offer help with burr replacement.
How Much Does the Ascaso H64 Cost?
The Ascaso H64 costs $895 in the United States in black or white. Espresso Parts, Seattle Coffee Gear and AscasoUSA list the same price.
Prices in Europe run lower. German shops listed the grinder near 690 to 699 euros at launch. Because the US price is higher, a US buyer should not expect that figure.
Stock can run short. AscasoUSA showed sold-out flags on the H64 pages. A buyer should check the distributor before planning a purchase date.
Does the Ascaso H64 Come With a Warranty?
Yes. The Ascaso H64 comes with a one-year manufacturer warranty covering parts and labor. Seattle Coffee Gear handles claims on grinders it sells.
Espresso Parts, the US distributor, also stocks parts and supports warranty claims. Buyers who need a repair should contact the seller first. A faulty unit should not be repaired alone.
The warranty covers home use. Commercial use may void the cover. The AscasoUSA product page lists no warranty term at all.
Is the Ascaso H64 Worth It?
Yes. The Ascaso H64 is worth it for a home barista who wants large flat burrs, timed doses and a quiet motor in one grinder. At $895 the price is high, so the fit matters.
The strengths are real. The 64 mm burrs, the stepless ring, the three programmable doses and the single-dose hopper all come in one package. The 60 dB rating suits shared homes.
The weak points are evidence and price. No measured retention or particle test exists. Rivals like the Specialita cost $246 to $346 less.
Pros:
- 64 mm flat steel burrs
- Stepless adjustment ring
- Three programmable timed doses
- Single-dose hopper included
- 60 dB noise rating
Cons:
- $895 price
- No measured retention test
- No independent particle test
- Home use only
Who Should Skip the Ascaso H64?
Drip and French press drinkers should skip the Ascaso H64, because a simpler grinder serves them at a lower price. The Baratza Encore ESP costs $199.95.
Light-roast hobbyists who track retention gram by gram should wait for a measured test. Cafe and shop owners should skip it as well. The grinder is not approved for commercial use.
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