Mr Coffee Automatic Burr Mill Grinder: Honest Review After Daily Use

The Mr. Coffee Automatic Burr Mill Grinder (model BVMC-BMH23) was one of the most popular budget burr grinders for years, and it still shows up in a lot of "best cheap grinder" lists. I bought one because I wanted to upgrade from a blade grinder without spending $150+, and at around $30 to $40, it seemed like an easy win. The reality is more complicated than the price tag suggests.

Here's my honest take on what this grinder does well, where it falls short, and whether it's still worth buying when newer budget options exist. I'll also cover some common problems owners run into and how to fix them.

Design and Build Quality

The Mr. Coffee BMH23 is a compact, mostly plastic machine that doesn't take up much counter space. It has a removable bean hopper on top that holds about 4 ounces of whole beans, a quantity selector dial (4 to 12 cups), and 18 grind settings ranging from fine to coarse.

The hopper twists off for easy filling and has a built-in lid. The ground coffee drops into a removable chamber at the front that doubles as a sealed storage container. This is actually a nice touch since you can grind directly into the container and snap the lid on if you're not brewing right away.

Build quality is what you'd expect at this price point. The plastic feels lightweight and the mechanism has some play in it. The grind adjustment collar clicks between settings but doesn't feel particularly precise. The overall impression is "functional but not built to last a decade."

What's in the Box

You get the grinder body, the bean hopper with lid, the ground coffee chamber with lid, and a small cleaning brush. No manual dosing option, no timer. It's a simple machine designed to do one thing: grind a set amount of coffee and shut off.

Grind Quality and Consistency

This is where things get interesting, and also where the Mr. Coffee Burr Mill shows its limitations.

The grinder uses conical steel burrs, which is a genuine upgrade over blade grinders. At medium and coarse settings, it produces reasonably uniform grounds that work well for drip coffee and French press. The particles aren't perfectly consistent, but they're close enough that your coffee will taste noticeably better than what you get from a blade grinder.

At finer settings, the consistency drops off. You get a wider spread of particle sizes with more fines mixed in. For pour over this is passable but not great. For espresso, forget about it. The finest setting on this grinder is still too coarse for a pressurized portafilter, and way too coarse for a standard espresso basket.

The Static Problem

One well-known issue with this grinder is static electricity. The plastic grounds container and the plastic chute create a lot of static, which causes coffee grounds to cling to the sides of the container, the chute, and basically everything. You'll end up tapping the container on the counter and brushing grounds off the machine after every use.

Some owners fix this by putting a drop of water on the beans before grinding (called the "Ross Droplet Technique" or RDT). It reduces static significantly and doesn't affect the grind. Just wet your finger under the faucet and stir the beans in the hopper before grinding. It works.

How the Cup Selector Works

Instead of a timer or weight-based dosing, the Mr. Coffee uses a "cups" dial that goes from 4 to 12. You set the number of cups you want and the grinder runs until it thinks it's ground enough for that many cups.

Here's the issue: the grinder's idea of "enough" doesn't always match reality. It tends to grind slightly less than expected at finer settings and slightly more at coarser settings. The cup markings are really just relative volume settings, not precise measurements.

My recommendation is to ignore the cup markings and figure out what number gives you the weight you need for your brew. I found that "8 cups" gave me about 30 grams of coffee, which was right for a 12-ounce pour over. You'll need to experiment with your own setup.

If you want precise doses, weigh your beans before putting them in the hopper and only load what you plan to grind. The grinder will run until the hopper is empty, giving you the exact amount you wanted.

Common Problems and Fixes

Grinder Won't Start

The most common complaint with this model is the safety interlock. The hopper has to be seated and twisted into the locked position for the grinder to run. If the hopper is even slightly out of alignment, the grinder won't turn on. Make sure you hear the click when twisting the hopper into place.

Uneven Grounds

If your grounds are coming out with a mix of very fine powder and larger chunks, the burrs may need cleaning. Coffee oils and fine particles build up between the burrs over time, which affects consistency. Remove the upper burr (it pulls straight out on this model), brush away the buildup with the included brush, and reassemble. Do this every 2 to 4 weeks.

Loud Noise or Grinding Sounds

Some metal-on-metal noise is normal, but if it sounds like the grinder is struggling or making a screeching noise, a small stone or foreign object may have gotten into the burrs. Disconnect the grinder, remove the upper burr, and inspect both burr surfaces for debris.

Grounds Retention

The chute and chamber design retains about 1 to 2 grams of coffee between grinds. This isn't a big deal if you use the same beans every day, but if you switch beans frequently, yesterday's stale grounds will mix with today's fresh ones. A quick tap on the machine after grinding helps clear the chute.

Who This Grinder Is For

The Mr. Coffee Burr Mill makes sense for a specific type of coffee drinker. If you brew drip coffee or French press every day, you're upgrading from pre-ground or a blade grinder, and you don't want to spend more than $40, this grinder will give you a noticeable improvement in cup quality.

It's also decent as a first burr grinder to figure out whether grinding fresh makes enough of a difference to justify spending more later. For a lot of people, this grinder is the gateway that leads them to a Baratza Encore or a 1Zpresso hand grinder a year later.

If you're looking at automatic coffee machines with built-in grinders, the Mr. Coffee Burr Mill is a way to get the fresh-grinding benefit without replacing your existing brewer.

Who Should Skip It

If you brew pour over with any seriousness, this grinder will frustrate you. The inconsistency at medium-fine settings produces uneven extraction, and the lack of precise adjustment makes dialing in difficult.

If you drink espresso, don't buy this grinder. It can't grind fine enough, period.

If you value build quality and plan to keep your grinder for 5+ years, the plastic construction and simple motor on this model may not hold up. I've seen reports of the motor dying after 18 to 24 months of daily use, though others have had theirs running for years without issues.

For people who want something in this general price range but with better grind quality, a hand grinder like the Timemore C2 ($50 to $70) or the JavaPresse ($40) will produce more consistent results. You sacrifice the convenience of an electric motor, but the grind quality improvement is significant.

For the best automatic coffee maker with grinder setups, there are better standalone grinders to pair with your drip machine.

FAQ

Can the Mr. Coffee Burr Mill grinder do espresso?

No. The finest setting is still too coarse for proper espresso extraction. Even with a pressurized portafilter, you'll struggle to get enough resistance for a decent shot. This grinder is designed for drip, French press, and cold brew.

How do I clean the Mr. Coffee Burr Mill?

Remove the hopper, pull out the upper burr cone, and brush away ground coffee with the included brush or a dry paintbrush. Wipe the chamber with a dry cloth. Don't use water on the burrs or the grinder body. Do this every 2 to 4 weeks, or whenever you notice inconsistent grinds.

Is the Mr. Coffee Burr Mill better than a blade grinder?

Yes, significantly. A blade grinder produces wildly uneven particles from dust to chunks. The Mr. Coffee Burr Mill gives you much more uniform grounds, which means more even extraction and better tasting coffee. It's the single biggest upgrade you can make from a blade grinder without spending much money.

How long does the Mr. Coffee Burr Mill last?

With regular cleaning and moderate daily use, expect 2 to 4 years. The motor and plastic gears are the weak points. Some users report failures at the 18-month mark, while others have had theirs for 5+ years. At $30 to $40, even 2 years of daily use works out to pennies per grind.

The Verdict

The Mr. Coffee Automatic Burr Mill Grinder is a $35 grinder that performs like a $35 grinder. It's a genuine upgrade over blade grinders for drip and French press drinkers on a tight budget, but it doesn't compete with grinders in the $100+ range. If you're starting your fresh-grinding journey and want the cheapest possible entry point, it works. If you already know you care about coffee quality, save up for something better. The extra $60 to $100 buys you meaningfully better grind consistency that you'll taste in every cup.