I did not think I needed a Benriner mandoline slicer until I spent twenty minutes trying to get potato slices thin enough and even enough for a gratin, and half of them still came out wedge shaped by the time I gave up and finished the job with a knife. My Benriner mandoline showed up about two weeks later, and that particular gratin problem never came back. Once I started using it for more than potatoes, cucumbers, onions, fennel, cabbage, I realized how much of my prep time was actually knife time I did not need to spend.
I keep a small kitchen, so anything on my counter has to earn its space, and a Benriner mandoline is one of maybe six tools that has stayed in steady rotation since I bought it. It is not because it looks impressive in a video. It is because it solves a specific, repeatable problem: getting the same thickness on every single slice, fast, without babysitting a knife the whole time. Here are the ten specific reasons it saves me real minutes on prep night, plus the one rule I never break with it.
The slicer that finally made my gratin come out even
If uneven slices keep wrecking your gratins, slaws, or roasted veg, this is the tool that fixed it for me in one use. Check today's price and see if it earns space in your kitchen too.
Amazon See Today's Price on Amazon →It slices in seconds, not minutes
A russet potato that takes me close to four minutes to slice evenly by hand takes about thirty seconds on the mandoline, food holder included. That is not an exaggeration, I timed it twice with a kitchen timer because I did not believe the gap myself the first time. Multiply that across four or five potatoes for a real gratin and you are looking at fifteen or twenty minutes saved before you have even started the sauce.
Every slice comes out the same thickness
This is the whole reason I bought it. My knife cuts have always been inconsistent, some slices thin, some nearly double, which means uneven cooking in the oven or the pan. With the adjustable dial set once, every slice that comes off the blade is the same thickness as the one before it, so a gratin actually cooks through at the same rate layer to layer instead of some pieces going mushy while others stay firm.
The adjustable blade covers more than one job
The Benriner comes with four stainless blade inserts, so I can go from paper-thin cucumber for a quick pickle to a julienne cut for a carrot slaw without pulling out a second tool. Swapping blades takes maybe fifteen seconds. That flexibility is why it replaced both my old handheld slicer and the slicing disc I used to dig out of a drawer for the food processor.
It makes slaws and salads look restaurant made
Shredded cabbage for slaw used to be the most tedious ten minutes of my week, uneven ribbons, some thick enough to still crunch weird after dressing. Running a cabbage half through the mandoline gives me thin, uniform ribbons in under a minute, and the whole slaw dresses evenly instead of half the pieces staying stiff and undressed at the bottom of the bowl.
Cucumber and zucchini chips come out paper thin
For roasted zucchini chips or a quick cucumber salad, thin is the whole point, and a knife just cannot get consistently thin without a lot of practice. On the finest setting the mandoline gets slices thin enough to see light through, which means faster roasting times in the oven and a crisper result instead of soggy centers.
The hand guard keeps my fingers where they belong
I will say this plainly because it matters more than any speed claim on this list: the mandoline's blade is genuinely sharp, sharper than most kitchen knives, and I use the plastic food holder guard every single time, on every vegetable, right down to the last small end piece. It is tempting to finish off a nub of potato with bare fingers once the guard cannot grip it anymore. I do not. I either switch to a knife for that last bite-sized piece or use a fork to hold it steady instead. That one habit is the difference between loving this tool and ending up in urgent care.
Cleanup is faster than a food processor
A food processor slicing disc means disassembling a bowl, a lid, a pusher, and a blade, then washing all four pieces plus finding room to store them. The mandoline is one flat piece of plastic and one blade, rinsed under the faucet and dried in under a minute. Less cleanup means I actually reach for it on a weeknight instead of deciding it is not worth the dishes.
It turns Sunday prep into twenty minutes instead of an hour
When I batch slice for the week, potatoes for hash, cucumbers for snacking, onions for a big pot of soup, the mandoline gets through all of it in about twenty minutes total. The same lineup with a knife used to eat close to an hour of my Sunday, which is usually the reason I skipped prep entirely and ended up ordering food by Wednesday.
It makes cooking times predictable
Even slices mean even cooking, which sounds obvious until you have pulled a gratin out of the oven with crunchy edges and a raw center because the thickness varied by layer. Since switching to the mandoline for anything that gets roasted or baked in layers, I have stopped guessing at extra oven time to compensate for the thick pieces that never quite finish.
It stores flat in a drawer I already had
I almost passed on this because I assumed it would be another long, awkward gadget that never fits anywhere. It is not. The whole thing is thin enough to slide into my utensil drawer standing on its side, next to a cutting board, with the blade inserts tucked in a small pouch beside it. If it had taken up counter space permanently, it would have gone back the same week.
What I'd Skip
I would not reach for this on a soft, ripe tomato or anything with loose seeds and a lot of give, it tends to squash rather than slice cleanly, and a serrated knife does that job better. I also would not use it for a single small carrot for one serving, the setup and rinse is not faster than thirty seconds with a knife in that case. And if you are nervous around sharp tools in general, it is worth practicing on something forgiving, like a cucumber, before you move on to something small and awkward to hold, like a shallot. This is a batch tool built for firm produce in real quantity, not an everything tool, and treating it that way is the difference between loving it and getting frustrated with it.
It didn't make me a more careful cook. It made even, careful slicing the fast option instead of the slow one.
Get even, paper-thin slices without the knife work
Ten small time savings a week add up fast. See today's price on the mandoline that made my gratin come out even for the first time.
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