Grinders / De'Longhi Dedica KG521
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De'Longhi Dedica KG521 review (2026)
De'Longhi Dedica KG521 is a electric grinder that suits Pour-over and French press. From €159 delivered to Germany, prices vary by country.
Sources say it is fine for filter and for pressurized espresso baskets. Out of the box it is too coarse for real espresso, and owners report jams and gear failures.
Best for
- Drip, pour-over and French press
- Pairing with a Dedica machine and pressurized baskets
- Slim kitchens
Skip if
- You use unpressurized espresso baskets
- You want to program exact doses
- You want a grinder built to last for years
- Lithuania €169.99
- Latvia €169.99
- Estonia €206.15
- Poland €210.48
- Finland €203.99
- Germany €159
Brew methods
Only 18 steps, so espresso and moka dial-in is coarse.
Delivered price
Delivered to the country in each column: price with that country's VAT where the shop charges it, plus shipping. A dash means the shop does not sell or ship there.
How it adds up, delivered to Lithuania
- €169.99 shop price, VAT included
- free shipping
- €201.17 shop price, VAT included
- free shipping
Pros and cons
Pros
- Kaffeemacher measured low retention, so single-dosing works.
- Coffee Gear Zone says settings 8 to 12 give a uniform crumble for drip and pour-over.
- ProductReview.com.au owners report good results for moka pot, cold brew, French press, filter and AeroPress.
- De'Longhi lists a 350 g hopper, a 170 g grounds container and a portafilter holder.
- Coffee Gear Zone says it has a slim footprint of about six inches wide.
Cons
- Kaffeemacher found the stock grinder cannot grind fine enough, giving sour, underextracted shots.
- Kaffeemacher says dose control is coarse, so amounts like 19 g cannot be set.
- Coffee Gear Zone says grounds get stuck in the chute.
- Owners on ProductReview.com.au report static, mess and a loose or fiddly portafilter holder.
What owners report
- Espresso fineness is the dominant complaint. ProductReview.com.au owners say it does not grind finely enough for unpressurized baskets. A few say it suits a Dedica machine with pressurized baskets.
- Jamming and plastic gears. One owner had two units jam on fine settings and returned both. Another says the plastic reduction gear stripped its teeth.
- Noise. Most owners describe it as a little noisy or high-pitched. One says it is quieter than cheaper grinders.
What experts measured
- Kaffeemacher measured 86.2 dB, 1.4 g of retention and 17.1 g per 10 seconds.
- Kaffeemacher measured a dose standard deviation of 0.28 g, about average, and 0.2 g difference when single-dosing.
- ProductReview.com.au shows a score of 2.6 from 14 reviews.
Alternatives
Sage Dose Control Pro
Another hopper grinder with a portafilter cradle that reaches true espresso settings.
€159 at Kavos draugas / Coffee Friend →Baratza Encore ESP
Coffeeness says its first 20 settings are a fine espresso range.
€159 at Kavos draugas / Coffee Friend →Questions
What is the De'Longhi Dedica KG521 good for?
It works well for Pour-over and French press. It is limited for Espresso, Moka pot and AeroPress. It is not suited to Cold brew. Only 18 steps, so espresso and moka dial-in is coarse.
How much does the De'Longhi Dedica KG521 cost delivered?
Cheapest delivered price: €169.99 to Lithuania, €169.99 to Latvia, €206.15 to Estonia, €210.48 to Poland, €203.99 to Finland, €159 to Germany.
Is the De'Longhi Dedica KG521 a hand or electric grinder?
It is a electric grinder with Conical, stainless steel burrs and stepped adjustment. It is not rated as quiet.
Is the De'Longhi Dedica KG521 a single-dose grinder?
No, it uses a hopper that holds beans.
Can the De'Longhi Dedica grinder make espresso?
Reviewers say it works with pressurized baskets but not unpressurized ones. Kaffeemacher says a washer modification is needed, which may void the warranty.
Is it good for filter coffee?
Coffee Gear Zone and Kaffeemacher's author say it does a proper job for filter and moka pot.
Specs
| Type | Electric |
| Burr | Conical, stainless steel |
| Adjustment | stepped |
| Quiet | no |
Spec sources: 1
Sources
This review draws on these sources.
- Test: De'Longhi KG521, A good espresso grinder to get started?, Kaffeemacher, 2022-01-16 (expert)
- DeLonghi KG521.M Review: Worth the Counter Space in 2026?, Coffee Gear Zone, 2026-02-26 (expert)
- DeLonghi Dedica KG521M reviews, ProductReview.com.au (owners)
- Dedica KG521.M Coffee Grinder, De'Longhi (maker)