The best way to clean a Microplane is to first brush off debris with a stiff pastry brush under warm running water, then run the tool through the top rack of the dishwasher. This two-step method removes food particles without damaging the razor-sharp blades and prevents oils from turning rancid in the crevices.

Quick Answer

Cleaning a Microplane requires prompt action to prevent food from drying on the blades. The optimal approach combines a quick manual rinse and brush to dislodge stuck bits, followed by a dishwasher cycle for sanitization. Avoid soaking or using abrasive sponges, which can dull the cutting edges.

  • Material: Microplanes are made of hardened stainless steel, dishwasher-safe but vulnerable to high heat if placed on the bottom rack.
  • Cleaning Frequency: For best results, rinse and brush immediately after each use; a full dishwasher clean every few uses is sufficient.
  • Drying: Air-dry thoroughly after washing to prevent rust spots on the blade edge.
  • Storage: Store in a protective sheath or hanging rack to avoid accidental contact that can dull the blades.

Why Prompt Cleaning Matters

Microplane graters have ultra-sharp, raised cutting edges that easily trap food particles. Citrus zest, garlic, ginger, and hard cheese leave behind oils and sugars that can dry into a stubborn film. If left uncleaned, these residues not only become difficult to remove but can also turn rancid, imparting off flavors to future dishes. Additionally, dried-on food can cause the blades to clog, reducing grating efficiency and potentially bending the delicate teeth.

Cleaning within five minutes of use prevents these issues. The thin, sharp blades are also prone to dulling if exposed to harsh scrubbing or soaking in water for extended periods, which can lead to rust or corrosion at the blade base.

Step-by-Step Manual Cleaning

  1. Rinse immediately: Hold the Microplane under warm running water (not hot, which can cook food onto the blade) to wash away loose particles. Angle the grater so water flows from the back of the blade to the front, pushing debris off the cutting edges.
  2. Brush away stuck bits: Use a stiff-bristled pastry brush or a dedicated grater cleaning brush. Brush in the direction of the blade teeth (from the non-sharp side to the sharp side) to dislodge caked-on zest or cheese. Avoid using a dish sponge or scrub pad, as these can snag and dull the blades.
  3. Inspect and repeat: Hold the grater up to the light. If any particles remain, repeat the brushing step. For stubborn dried-on food, let the grater soak for 2–3 minutes in warm water with a drop of dish soap, then brush again. Never soak for longer than 5 minutes.
  4. Dry immediately: Shake off excess water and place the Microplane upright in a dish rack to air-dry completely. Alternatively, pat dry with a clean kitchen towel, being careful not to cut the towel fibers on the blades.

Dishwasher Cleaning Method

Microplane explicitly states that their graters are dishwasher-safe, but only on the top rack. The high heat and water pressure on the bottom rack can warp the blade or cause it to loosen from the handle. Place the grater on the top rack, facing downward to allow water to drain freely. Avoid nesting it under other utensils that might trap water against the blade.

Run a normal cycle with a rinse aid to prevent water spots. After the cycle, remove the grater promptly to avoid condensation and allow it to air-dry fully. The dishwasher method is best for removing oils and sanitizing, but it may not fully dislodge dried-on food; a manual brush step before the dishwasher ensures a thorough clean.

Alternative Cleaning Tools

If you don’t have a pastry brush, a clean toothbrush with soft bristles works well for dislodging stubborn bits. Some users find that a small spray of cooking oil before grating cheese reduces sticking, making cleanup easier. Another trick: grate a raw potato after zesting citrus; the potato’s starch helps lift oils and residue from the blades.

Avoid using steel wool, scouring pads, or any abrasive cleaner. These can scratch the blade surface, creating rough spots that catch food and reduce sharpness. Also, never use bleach or harsh chemicals that could corrode the stainless steel.

Long-Term Care and Sharpness

Microplane blades are designed to stay sharp for years with proper care. The primary enemy is dulling from contact with hard surfaces—never scrape the grater against a bowl or cutting board to remove zest. Instead, tap the grater handle gently or use a brush. Store the grater in its protective sheath or a dedicated drawer organizer to prevent blade-to-blade contact with other tools.

If you notice a decrease in performance, examine the blades under bright light for bent or dull teeth. Microplane does not recommend sharpening the blades, as the process can damage the precision edges. Instead, replace the grater if it becomes noticeably dull—typically after several years of frequent use.

Pro Tips

  • After zesting citrus, rub a few drops of vegetable oil onto the blade before washing to dissolve the oils and make rinsing easier.
  • Use a dedicated grater cleaning brush with nylon bristles—they are stiff enough to dislodge food but gentle on the blade.
  • For hard cheese like Parmesan, grate directly onto wax paper or a plate to minimize mess and reduce the need for deep cleaning.
  • If you don’t have a dishwasher, sanitize the Microplane by pouring boiling water over it after brushing (but don’t soak it).

Common Mistakes to Avoid

  • Soaking the Microplane for more than 10 minutes, which can cause the blade to rust at the rivet points where the metal meets the handle.
  • Using a dish sponge with a scrubby side—the abrasive material will eventually dull the sharp edges, reducing grating efficiency.
  • Placing the grater in the dishwasher on the bottom rack, where the heating element can warp the blade or melt the handle.
  • Storing the Microplane loose in a drawer without a sheath, leading to accidental contact with metal utensils that chip the teeth.

FAQ

Can I clean a Microplane with bleach?

No. Bleach and other harsh chemicals can corrode the stainless steel blade and damage the handle. Stick to mild dish soap and water, or a vinegar rinse for sanitizing.

How do I remove dried citrus zest from a Microplane?

Spray the blade with a little cooking oil and let it sit for one minute to soften the zest, then brush under warm water. If still stuck, use a toothbrush to gently work it loose.

Is it safe to put a Microplane in the dishwasher every day?

Yes, if placed on the top rack. However, frequent dishwasher cycles may eventually dull the blade slightly faster than hand washing. For everyday use, a quick rinse and brush is sufficient, with a dishwasher clean once a week.

The Bottom Line

Keeping your Microplane clean doesn’t require special tools or excessive effort. A simple routine of immediate rinsing, brushing, and occasional dishwasher runs will maintain its razor-sharp edge for years. Avoid soaking, abrasive scrubbers, and bottom-rack dishwasher placement, and your grater will deliver perfect zest, cheese, and spices every time. For stubborn residues, a quick oil treatment or potato grate can work wonders. With these practices, your Microplane will remain a reliable kitchen workhorse.

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