DaVinci MIQRO-C

The MIQRO-C stacks a glass lined ceramic oven directly beneath a short zirconia vapor path, so anything ground too fine rises through the oven holes and films the inside of that path. Our review found the same thing: keep the grind medium and most of the residue stays in the oven, where it is easy to reach.

1. Sweep the oven while it is warm. Open the bottom lid after a session and clear the spent material before it cools and sets. The onboard pick tool, stored under the upper lid along the inner wall, is what DaVinci intends you to use for dislodging particles wedged in the oven holes.

2. Pull the vapor path. The zirconia vapor path lifts out with the pick tool. The manual says to soak it in 70 percent or stronger isopropyl alcohol as needed and finish with a rinse of water. Let it dry completely before refitting, and skip anything abrasive, since scouring damages the zirconia surface.

3. Unscrew the pearl. The zirconia pearl spacer twists to vary oven volume by up to 40 percent, and its threads collect resin that makes the adjustment stiff. Wipe the post and the gasket sitting under it with one of the included alcohol wipes. DaVinci sells the pearl post and gasket together if the gasket ever perishes.

4. Soak the mouthpiece briefly. The MIQRO-C uses a silicone mouthpiece and a silicone 10mm water tool adapter rather than the zirconia parts fitted to the original MIQRO. The manual clears both for isopropyl, but keep the soak short and rinse with water, because prolonged alcohol contact stiffens silicone. A pipe cleaner clears the bore.

5. Swab the body, never submerge it. For the fixed surfaces use a cotton swab dampened with isopropyl, not a wet one. Keep alcohol out of the battery compartment, the USB-C port and the contacts that meet the cell, and let everything dry before you power up.

Brush the oven each session, swab it every few sessions, and take the vapor path out for a proper soak around once a month. While the upper lid is open, check the 18350 battery: DaVinci says to stop using a cell whose wrapper is torn or which shows corrosion, and to fit only their flat top 18350. Worth knowing that the five year warranty excludes damage traced to neglected cleaning, so the routine above protects the cover as well as the flavor.