Mythos MY75: A Commercial Grinder Built for Specialty Coffee Shops

The Mythos MY75 is a commercial espresso grinder from Nuova Simonelli (now Simonelli Group) that sits between the older Mythos One and the flagship Mythos 2. If you're a cafe owner or a serious home barista with deep pockets, the MY75 brings some genuinely interesting technology to the table, including climate control and a new 75mm flat burr design.

I've used the MY75 in a cafe setting and spent time comparing it against the older Mythos One and a few other commercial grinders. Here's what I found, including some things that might surprise you about this machine.

What Makes the MY75 Different

The headline feature of the MY75 is its ClimaPro temperature management system. Coffee grinding generates heat, and heat changes how coffee extracts. On a busy cafe morning, your grinder warms up as you pull shot after shot, and the grind you dialed in at 7 AM might taste completely different by 10 AM.

The MY75 actively manages the temperature around the burrs, keeping them in a stable range throughout the day. This means fewer adjustments during service and more consistent shots from open to close. In practice, I noticed I was adjusting the grind maybe once or twice during a full day of service, compared to four or five times on grinders without temperature control.

The Burr Set

The 75mm flat titanium-coated burrs are fast. They'll grind an 18-gram dose in about 3-4 seconds, which keeps up with even the busiest rush. The grind quality is excellent, producing a tight particle distribution that pulls sweet, clean espresso shots with good body.

These burrs last a long time too. Simonelli rates them for about 1,200 kg of coffee, which translates to roughly 2-3 years of heavy commercial use before you need a replacement set.

Workflow and Daily Use in a Cafe

The MY75 is designed around cafe workflow. The portafilter fork holds the portafilter steady while grinding, and the short dosing chute minimizes retention. Grind-on-demand means you're always working with fresh grounds, not stale doses sitting in a chamber.

The touchscreen interface is simple and responsive. You program dose weights for single and double shots, and the grinder measures by time (not weight). Getting consistent doses requires some initial calibration, but once dialed in, dose consistency runs within about 0.3 grams.

Noise Level

It's quieter than the Mythos One. Not quiet by any stretch, but the sound is more of a smooth hum than a harsh buzz. If you've worked in a cafe with a Mazzer Super Jolly, the MY75 will feel like a whisper by comparison.

The grinder runs at a lower RPM than many competitors, which is part of why it generates less heat and noise. Slower RPM also means less static in the grounds, which is a nice bonus.

MY75 vs Mythos One: What Actually Changed

The Mythos One was a workhorse, but it had some real problems. The biggest complaint was heat buildup during heavy use, which caused grind drift throughout the day. The MY75's ClimaPro system directly addresses this.

The hopper design is updated. It's sleeker and the bean flow into the burrs is more consistent, reducing the occasional clumping issue that plagued some Mythos One units. The adjustment collar feels more refined, with finer increments for dialing in.

Build quality is improved in small ways. Better plastics, more durable portafilter fork, and a cleaner overall fit and finish. It's not a radical redesign, but everything feels a step above the Mythos One.

What Stayed the Same

The footprint is nearly identical. If you're replacing a Mythos One on your bar, the MY75 drops right in. The portafilter fork accepts the same range of portafilter sizes, and the hopper capacity is similar at about 1.5 kg.

The price point is also in the same neighborhood, roughly $2,500-3,000 depending on your dealer. That's competitive for a commercial grinder at this level.

How It Compares to Other Commercial Grinders

Against the Mahlkonig E65S, the MY75 holds its own. The E65S has slightly better grind distribution in some tests, but the MY75's temperature management gives it an edge during high-volume service. I'd pick the MY75 for a busy espresso bar and the E65S for a lower-volume shop that also does filter.

Against the Mazzer Major V, the MY75 wins on workflow and temperature stability. The Mazzer is more of a traditional workhorse without the smart features.

If you're comparing across the Simonelli lineup, the MY75 offers about 85% of the Mythos 2's performance at a lower price. The Mythos 2 has a larger burr set, more programming options, and marginally better grind quality. But for most cafes, the MY75 is more than enough.

For a broader look at what's available, our best coffee grinder roundup covers options for both commercial and home use.

Should Home Baristas Consider the MY75?

Honestly, probably not. The MY75 is built for commercial volume and priced accordingly. It's loud for a home kitchen, oversized for a home bar, and the temperature management system really only matters when you're grinding dozens of doses per hour.

If you're a home barista with a generous budget and you just want the best possible espresso grind, look at the Lagom P64 or the Weber Key instead. You'll get comparable grind quality in a more home-friendly package.

That said, if you're the type of person who buys a commercial espresso machine for home use (and there are plenty of you out there), the MY75 pairs beautifully with machines like the Decent DE1, La Marzocco Linea Mini, or Slayer Single Group. Just be prepared for the counter space it demands.

Check our top coffee grinder list for both home and commercial picks across different budgets.

Maintenance and Longevity

Daily maintenance is simple: brush out the burr chamber at the end of each day and wipe down the portafilter fork. Weekly, I'd recommend running a handful of grinder cleaning tablets through to remove coffee oil buildup.

The burrs are the main consumable. Budget about $150-200 for a replacement set every 2-3 years under heavy commercial use. Home users would need to replace them far less frequently.

The motor is industrial grade and should last well beyond a decade of commercial use. Parts availability is good through Simonelli's dealer network, and most common repairs can be done by a local espresso tech.

FAQ

How much does the Mythos MY75 cost?

Expect to pay between $2,500 and $3,000 from an authorized dealer. Prices vary by region and dealer relationship. Buying used is an option, but check the burr condition and motor hours before purchasing.

Is the MY75 good for pour over or filter coffee?

No, it's designed specifically for espresso. The adjustment range and burr geometry are optimized for fine grinding. If you need a commercial grinder that does both espresso and filter, look at something like the Mahlkonig E65S GBW or a dedicated filter grinder.

How does ClimaPro temperature control actually work?

ClimaPro uses a heating element and sensors around the burr chamber to maintain a consistent temperature. It pre-heats the burrs on startup and then regulates temperature during use, preventing the gradual warming that causes grind drift. You set your target temperature in the menu.

Can I use it at home on a standard electrical outlet?

Yes, the MY75 runs on standard voltage (110V in the US, 220V in Europe). It draws about 650 watts, which is well within household outlet capacity. You won't need special wiring.

Final Thoughts

The Mythos MY75 is a strong commercial espresso grinder that solves real problems cafe owners face daily. The temperature management keeps shots consistent during service, the 75mm burrs are fast and produce clean espresso, and the build quality supports years of heavy use. It's not the cheapest option and it's not the absolute best grinder money can buy, but it hits a sweet spot of performance, reliability, and price that makes it a popular choice on cafe bars worldwide.