The Easiest Way to Clean a Cheese Grater Without Cutting Your Fingers
I have cut myself on a cheese grater more times than I care to admit. Not while grating cheese — that part I handle fine. It is the cleaning that gets me. Reaching into those tiny metal teeth with a sponge always ends the same way: a Band-Aid and a grater that is still half-dirty.
Then a line cook at a diner I used to eat at every Saturday showed me his method. I have not bled on cheese since.

Why Cheese Graters Are a Cleaning Nightmare
The problem is twofold: dried cheese residue that welds itself to the metal, and razor-sharp teeth facing every direction. A sponge snags on the teeth and pushes cheese deeper into the crevices. The harder you scrub, the more dangerous it gets. There has to be a better way — and there is.
The Potato Trick Is Not a Gimmick
Grate a raw potato after you finish grating cheese. The potato’s starch and moisture push the cheese residue out of the teeth, and the vegetable’s firmness scrapes without dulling anything. When you rinse under hot water afterward, the cheese comes off in sheets. I tested this with cheddar (the stickiest) and it worked on the first try.
Lemon + Salt: The Greasy Cheese Solution
For harder cheeses like Parmesan that leave an oily film, cut a lemon in half, sprinkle the cut side with coarse salt, and scrub the grater with it. The citric acid cuts through oil while the salt acts as an abrasive. Rinse with hot water. Your grater will smell like lemon instead of three-day-old cheddar.
The Brush You Already Own
Use a vegetable brush or an old toothbrush. Run it along the teeth direction (not against), and the bristles pop the cheese out. Do this immediately after grating, while the cheese is still soft. If you let it sit for 20 minutes while you finish cooking, you are back to chiseling. I keep a designated grater toothbrush in the drawer next to the cutting boards.
Dishwasher: Yes or No?
Box graters are dishwasher safe for the most part, but hand-washing gives better results. If you go dishwasher, rinse first under hot water to blast off the big chunks, then place it tines-down so water jets hit the inside. I do this when I am lazy and it works maybe 80% of the time — good enough for mozzarella, not good enough for aged Gouda.
📋 Quick Summary: Grate a raw potato last to push out cheese. Lemon + salt for oily residue. Vegetable brush along the teeth while cheese is fresh. Rinse immediately — do not let it dry. Keep a dedicated toothbrush nearby and you will never bleed at the sink again.