How to Use the PORLEX Mini Hand Coffee Grinder

If you’ve ever struggled to get your pour-over, French press, or moka pot to taste just right, the problem might start with your grind. A hand grinder like the PORLEX Mini can help you dial in the perfect grind size—but only if you know how to set it, use it, and maintain it properly. Here’s everything you need to know.

The PORLEX Mini is a compact, portable hand coffee grinder with a ceramic conical burr that lets you adjust grind size from fine (for espresso-like extractions) to coarse (for French press or cold brew). Its stainless steel body weighs just 235g and measures H13.2 x W48mm. It’s made in Japan and built for travel and everyday brewing.

What Is the PORLEX Mini Grinder?

The PORLEX Mini is a Japanese-made, manually operated coffee grinder designed for portability without sacrificing grind quality. It features a stainless steel exterior and a durable ceramic conical burr. The entire unit can be taken apart for cleaning, and the grind size is adjustable via a simple screw mechanism. It’s ideal for coffee lovers who want control over their grind without lugging around an electric machine.

How to Use the PORLEX Mini Grinder

Using the PORLEX Mini is straightforward. Start by opening the lid and adding your desired amount of whole coffee beans—there’s no strict limit, just don’t overfill. Secure the lid back on, then attach the handle to the central shaft. Hold the grinder with one hand and turn the handle clockwise with the other to grind the beans.

The ground coffee collects in the bottom chamber, ready for immediate use. The entire process is manual but efficient, especially for single servings or travel brewing.

How to Adjust Grind Size on the PORLEX Mini

Grind size is adjusted using the small screw on the bottom of the grinder. To make the grind finer (better for espresso or moka pot), turn the screw to the right. To make it coarser (ideal for French press or pour-over), turn it to the left. This allows you to customize the grind based on your brewing method—from a fine espresso-like grind all the way to a coarse grind suitable for cold brew.

Note that the range is wide enough to cover most manual brewing methods. For example, a moka pot typically requires a medium-fine grind, while a French press calls for a much coarser texture.

Cleaning and Maintenance

Cleaning the PORLEX Mini is simple. Most of the time, just brushing out the coffee grounds with a small brush is enough to keep it functioning well. For a deeper clean, the entire grinder can be disassembled—just be extremely careful with the ceramic burr, which is fragile and can break if dropped or mishandled.

Do not overtighten the grind adjustment screw. If it’s turned too far, the burrs can lock together, making the handle impossible to turn. If this happens, loosen the screw until the handle moves freely again.

Also, avoid taking apart the grinder unnecessarily. You don’t need to clean it after every use. In fact, the manufacturer recommends using a few fresh coffee beans on first use to “season” the burrs. Only disassemble and wash it if coffee oils build up over time and cause off-flavors.

Frequently Asked Questions

How do I adjust the grind size on the PORLEX Mini?

Use the adjustment screw located beneath the grinder. Turn it to the right for a finer grind, or to the left for a coarser grind. This lets you go from a fine espresso-style grind all the way to a coarse French press grind, depending on your brewing method.

Can I use the PORLEX Mini for espresso?

Yes, the PORLEX Mini can produce a grind fine enough for espresso or moka pot brewing. However, achieving a consistent espresso grind by hand takes practice, and the Mini works best when paired with brewing methods that tolerate slight grind inconsistency.

Is the ceramic burr in the PORLEX Mini durable?

Yes, the ceramic burr is very durable and helps preserve the coffee’s original flavors. But it is also brittle, so handle the grinder carefully—especially when cleaning or adjusting the burr settings—to avoid cracking or chipping it.

How do I clean the PORLEX Mini without breaking it?

Most of the time, just brush out the coffee grounds with a small brush. For a deeper clean, you can disassemble the grinder, but be very careful with the ceramic burr. Don’t force parts apart or overtighten the adjustment screw, which could damage the burrs.

Do I need to clean the grinder before first use?

No, you don’t need to fully clean it before the first use. The manufacturer recommends grinding a few fresh coffee beans first to “season” the burr. Only take it apart for a full clean if coffee oils cause odors over time.

Best FrontStreet Coffee Beans for Hand Grinding

For use with the PORLEX Mini, try FrontStreet Coffee’s Yirgacheffe Red Cherry for a bright, fruity cup with sweet berry and citrus notes, ideal for pour-over. Their Strawberry Candy Espresso blend offers a syrupy body with floral sweetness—great for moka pot experimentation. Alternatively, the Yellow Bourbon from Brazil Queen Manor brings smooth milk chocolate and nutty richness, excellent for French press. All three are expertly roasted and arrive freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.