DeLonghi Burr Grinder: A Practical Review After Two Years of Daily Use
DeLonghi makes several burr grinders at different price points, and if you're shopping for one, you've probably come across the DeLonghi Dedica KG521 or the more budget-friendly KG89. Both are conical burr grinders aimed at home users who want fresh-ground coffee without spending $200 or more. I've used the KG521 as my daily drip coffee grinder for about two years, and I want to give you an honest look at what these machines do well and where they fall short.
The short version: DeLonghi burr grinders are solid mid-range options for drip coffee and French press. They're well-built for the price, reasonably quiet, and easy to use. But they have limitations that matter depending on how you brew your coffee. I'll cover all of it below.
The DeLonghi Burr Grinder Lineup
DeLonghi sells a few different burr grinder models, and the naming can get confusing. Here's a quick breakdown of the ones you'll most likely encounter.
KG89 (Budget Model)
The KG89 is the entry-level option, usually priced around $50 to $70. It has conical steel burrs, a 4-ounce bean hopper, and a simple dial with coarse-to-fine settings. The grounds drop into a removable container at the bottom. It grinds enough coffee for 4 to 12 cups at a time, controlled by a separate cup-quantity dial.
This is a no-frills grinder. It works, it's affordable, and it beats a blade grinder by a wide margin. But the grind consistency is average. You'll see a noticeable spread of particle sizes at any setting, with fines mixed into medium grinds and boulders mixed into coarse grinds.
KG521 Dedica (Mid-Range)
The KG521 is the step-up model, priced around $80 to $120. It uses the same conical burr design but adds 18 grind settings (compared to the KG89's fewer options), a larger bean hopper, and a more refined body design. The grind consistency is better than the KG89, though still not in the same league as a Baratza Encore.
This is the model I own, and it's been my daily driver for drip and pour-over coffee.
KG210 (Blade Grinder, Avoid)
DeLonghi also sells blade grinders with the "burr" keyword sometimes appearing in search results. The KG210 is a blade grinder, not a burr grinder. Avoid it. Blade grinders chop beans unevenly and produce inconsistent grounds no matter how long you run them.
Grind Quality: What to Expect
I tested the KG521 across drip, pour-over, French press, and Moka pot settings. Here's what I found.
Drip Coffee
The KG521 does its best work here. Medium grind settings (around 10 to 14 on the dial) produce grounds that work well in a standard drip machine. The coffee tastes clean and well-extracted. Not as crisp as what I get from my friend's Baratza Virtuoso, but clearly better than pre-ground coffee.
Pour-Over
Acceptable, but not ideal. The grind consistency at medium-fine settings shows enough variation that my V60 brews sometimes run fast (under-extraction) or slow (over-extraction) without changing anything else. I've learned to adjust my pouring technique to compensate, but a more consistent grinder would eliminate this variable.
French Press
The coarse settings produce a serviceable grind for French press, though the fines problem is real. My cups have a slight siltiness at the bottom. If you let the coffee steep for 4 minutes and pour carefully (stopping before the last half-inch), you can avoid most of the silt. It's a workaround, not a solution.
Moka Pot
The fine settings work adequately for Moka pot brewing. I used setting 4 and got a concentrated, strong brew. The Moka pot is forgiving enough that the grind inconsistency doesn't ruin the result.
For espresso, the KG521 can't grind fine enough. Don't try it.
Build Quality and Design
The KG521 feels well-made for a sub-$100 appliance. The body is a mix of metal and plastic, with the upper portion (bean hopper and dial) being plastic and the base being metal. The hopper holds about 350 grams of beans, which lasts me a week.
The grind dial sits on the hopper and clicks between settings with a satisfying detent. It's easy to adjust but won't move accidentally if you bump the grinder. The grounds container in front is plastic with a silicone lid that seals well enough to keep grounds fresh for a few hours.
Footprint
At about 6 inches wide and 10 inches tall, the KG521 is compact. It fits under standard kitchen cabinets and doesn't dominate the counter. The KG89 is slightly smaller. Both grinders weigh about 3 to 4 pounds, so they stay put during grinding without needing to be held down.
Noise Level
DeLonghi burr grinders are moderately quiet. The KG521 runs at roughly 70 decibels, which is quieter than a Baratza Encore but louder than a Eureka Mignon. It grinds a dose in about 10 to 15 seconds, so the noise doesn't last long.
The KG89 is slightly louder and has a higher-pitched whine that's more noticeable. Neither model is what I'd call disruptive, but if you're grinding early in the morning, it'll be heard in the next room.
Cleaning and Maintenance
Both models are straightforward to clean.
Weekly: - Remove the hopper and brush out the burr area with a soft brush - Empty and wipe the grounds container - Wipe down the exterior
Monthly: - Remove the upper burr (it lifts out without tools on the KG521) and vacuum the chamber - Check for caked coffee oils and wipe clean with a dry cloth
Every 6 months: - Run grinder cleaning tablets through (Urnex Grindz or similar) - Replace the charcoal filter in the grounds container lid if your model has one
The KG521's burrs should last 3 to 5 years with normal home use. DeLonghi sells replacement parts, though they're harder to find than Baratza parts. I'd recommend buying a spare burr set while they're available if you plan to keep the grinder long-term.
How DeLonghi Compares to the Competition
At the sub-$100 price point, the DeLonghi KG521 competes with the Oxo Brew Conical Burr Grinder and the lower end of the Baratza Encore range.
- vs. Oxo Brew: Very similar performance. The Oxo has a built-in scale and timer, which is convenient. The DeLonghi has more grind settings. I'd call it a toss-up.
- vs. Baratza Encore ($150): The Encore wins on grind consistency, especially at the medium and coarse end. The DeLonghi is $40 to $60 cheaper. If budget matters, the DeLonghi is a reasonable compromise. If you can stretch to $150, the Encore is worth the extra money.
For a broader comparison, check out our best burr coffee grinder roundup, which ranks options from budget to premium. Our best burr grinder guide also covers the top picks if you're ready to invest a bit more.
Who Should Buy a DeLonghi Burr Grinder
A DeLonghi burr grinder makes sense if:
- Your budget is under $100
- You primarily brew drip coffee or Moka pot
- You want a noticeable step up from pre-ground or blade-ground coffee
- You don't want to fiddle with complex settings or maintenance routines
Skip DeLonghi if:
- You make pour-over coffee and care about grind precision
- You need espresso-capable fineness
- You want a grinder with widely available replacement parts and long-term repair support
FAQ
Which DeLonghi burr grinder is the best?
The KG521 Dedica offers the best balance of grind quality and price. The KG89 is fine if you're on a tight budget, but the improved consistency of the KG521 is worth the extra $30 to $40.
Can DeLonghi burr grinders do espresso?
No. Even the finest settings aren't fine enough for proper espresso extraction. If you want espresso, you need a grinder specifically designed for that purpose.
How long do DeLonghi grinder burrs last?
Expect 3 to 5 years of daily home use before noticing a decline in grind quality. Heavy users might need to replace them sooner. DeLonghi sells replacement burrs, but check availability before you need them.
Is the DeLonghi KG521 better than a Cuisinart burr grinder?
In my experience, yes. The DeLonghi has more grind settings, better build quality, and slightly more consistent grounds. Cuisinart burr grinders tend to be cheaper but produce more fines across all settings.
My Verdict
The DeLonghi burr grinder line offers solid value under $100. The KG521 handles drip coffee and Moka pot well, it's compact, and it's easy to maintain. It's not going to satisfy someone who's already accustomed to a $150+ grinder, but for someone upgrading from a blade grinder or pre-ground coffee, the improvement in flavor is real and immediate. Buy the KG521 over the KG89 if you can, and use it for what it does best: everyday drip coffee with freshly ground beans.