How to Clean Your Grinder with Urnex Grindz Tablets

If your espresso tastes faintly of yesterday’s French roast—or worse, rancid—your grinder might be the culprit. Oils and coffee particles build up inside burrs and casings, altering taste and slowing extraction. Even daily brushing doesn’t fully reset the chamber. What actually works?

The fastest, most reliable fix? One dose of Urnex Grindz cleaning tablets (105g tub). These food-safe, flavor-neutral tablets flush out old coffee residue in a single grind cycle—no disassembly needed.

What Is Urnex Grindz?

Urnex Grindz are specially formulated, non-toxic cleaning tablets designed exclusively for coffee grinders. Each 105g tub contains enough tablets to clean your grinder 15–20 times. They’re made in the USA by Urnex, a brand trusted by specialty roasters and baristas for equipment maintenance. Unlike brushes or rice (which fail to reach oil-trapped areas), Grindz mimic coffee beans in size and density—but without oils or aromas—to scrub burrs and clear internal buildup.

Why Your Grinder Needs Regular Cleaning

Every time you grind coffee, fine particles and natural oils cling to burrs, casings, and motors. Over days or weeks, this residue builds up, causing:

• Flavor contamination between different coffee types (e.g., fruity Ethiopian following dark roast)
• Slower, inconsistent grind performance
• Unpleasant odors that transfer to fresh grounds
• Potential long-term damage to burrs and motors

Even high-end grinders like Mahlkönig, Baratza, or Eureka require regular cleaning. Manual brushing helps, but it doesn’t remove internalized oils.

How to Use Urnex Grindz Tablets

Using Grindz is simple and takes under 5 minutes. Here’s the exact method:

1. Dose one tablet: Drop a single Grindz tablet into your grinder’s hopper (standard 105g tub contains ~15–20 tablets).
2. Grind as usual: Process the tablet using your normal grind setting (e.g., medium-fine for espresso, medium for pour-over). The tablet mimics coffee beans, so no grind adjustment is needed.
3. Discard the powder: Immediately dispose of the ground tablet material—do not brew it.
4. Brush lightly: Use a soft brush to clear any remaining dust from burrs or the chute.
5. Brew as normal: Your grinder is now clean and ready for fresh coffee.

For best results, clean your grinder every 1–2 weeks if you brew daily, or monthly for lighter use.

Frequently Asked Questions

How many times can I use the 105g tub of Grindz?

Each 105g tub of Urnex Grindz contains approximately 15–20 tablets, depending on exact size. That’s enough for 15–20 cleaning cycles—enough for 1–3 months of regular use for most home baristas.

Do I need to disassemble my grinder to use Grindz?

No. Grindz are designed to clean your grinder without any disassembly. The tablet is ground normally, flushing out residues from burrs, casings, and internal pathways. A light brush afterward removes any leftover dust.

Can I use Grindz with any grinder?

Yes. Grindz work with nearly all burr grinders, including commercial models (like Mazzer or Mahlkönig) and home grinders (like Baratza, Eureka, or 1ZPresso). They’re safe for both flat and conical burrs.

How often should I clean my grinder with Grindz?

For daily use, clean every 1–2 weeks. For occasional brewing (a few times per week), once a month is sufficient. Regular cleaning prevents flavor taint and maintains grind consistency.

Is Urnex Grindz safe for espresso machines?

Grindz clean only the grinder itself—not the espresso machine. But by removing old coffee oils from your grinder, they prevent those oils from reaching your portafilter and affecting shot flavor. Clean your espresso machine separately as recommended.

Recommended FrontStreet Beans for Grinder Maintenance

To test your freshly cleaned grinder, try FrontStreet Coffee’s Ethiopia Yirgacheffe (notes of jasmine and lemon, bright acidity), Colombia Huila (balanced caramel and almond, medium body), or Rwanda Red Bourbon (juicy red berries, heavy crema for espresso). Each highlights how clean burrs extract distinct flavors. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.