Watch this dollar-store knife get sharpened into a crazy-sharp blade

Top chefs know better than anyone the importance of a well-sharpened knife, their finely honed favorites able to slide effortlessly through a tomato with little more than the blade’s weight against the flesh of the fruit.

If you offered any pro chef a knife from a dollar store, they’d probably laugh you out of the kitchen, but as Japanese YouTuber Jun Yoshizuki recently demonstrated in a video on his JunsKitchen channel, even the cheap ones can be turned into something sliceworthy if you know what to do.

Using a knife purchased from one of Japan’s ubiquitous 100-yen “dollar” stores, Jun sets about reshaping the blade with some careful strokes on a sharpening stone.

Job done, Jun demonstrates just how easily his newly sharpened knife can slip through paper, a tomato, and, rather spectacularly, three water bottles lined up side by side.

Jun says he gets a lot of people asking him about the best knives to use for food prep. But of course, there’s no straight answer to such a question.

“It’s going to depend on your budget, what shapes you want your knives to be, which steel you want your knives to be made of, brand, design – there’s just so many things that you need to think about before getting one,” Jun explains to his YouTube audience.

“But one thing I can say for sure is that no matter how much you’re going to spend on your knives, they eventually get dull, and you need to sharpen them.”

Jun says that just as he demonstrated with his $1 knife, the best way to help it hit its potential is by using a sharpening stone. For more tips on how to get a crazy-sharp knife, head over to DT’s handy tutorial video here.

And be sure to check out Jun’s “Sharpening a $1 knife” video above, too. His cat wasn’t impressed, but you will be.

Emerging Tech

How emotion-tracking A.I. will change computing as we know it

Affectiva is just one of the startups working to create emotion-tracking A.I. that can work out how you're feeling. Here's why this could change the face of computing as we know it.
Smart Home

Making hard-boiled eggs isn’t hard — here’s how to do it perfectly every time

With the help of science or some kitchen gadgets, making hard-boiled eggs can be a little easier. It may not be the hardest task in the world, but a few of these methods are foolproof.
Gaming

10 Nintendo Switch tips and tricks to get the most out of your hybrid console

Have a new Nintendo Switch? Awesome! It's a great console from the moment you turn it on, but owners can make it even better by using a few simple tips and tricks. Here's what every Switch owner should know.
Trash

In 2019, laptops are better than ever. Here are the best of the best

The best laptop should be one that checks all the boxes: Great battery life, beautiful design, and top-notch performance. Our picks for the best laptops you can buy do all that — and throw in some extra features while they're at it.
Smart Home

I have seen the future, and it’s full of salad-making robots

Think that robots bussing tables, tossing salads and baking bread is a futuristic concept? It's actually not as far away as you might think. Robots took center stage at a food robotics summit in San Francisco this week, where they showed…
Product Review

4K in home security is finally here, thanks to Arlo’s Ultra UHD smart cam

The 4K home security camera is finally here! Class-leading image clarity and a super-wide field of vision makes Arlo Ultra an early contender for the year’s best smart cam. While there are definite quirks to the device, the device…
Smart Home

Ecobee leverages humor in a heated discussion with climate change skeptics

Ecobee cranked up the heat on climate change doubters. In observance of Earth Day, Ecobee and ad agency DCX released video of a social experiment that tested the effectiveness of humor in easing tension during discussions with skeptics.
Smart Home

Miele stuns with wireless probe, self-descaling java pot, and other new products

Miele rocked KBIS 2019 with waves of new appliances and features. The annual Kitchen and Bathroom Industry Show is all about product launches and Miele's appliance reveal was like New York Fashion Week with a single designer.
Deals

Shark, Ecovacs, and Roomba robot vacuums get price cuts for spring

The weather's getting nice again, and we're all emerging from our winter-long hibernation. So it's time once again to also start on that spring cleaning you've been putting off. But who really wants to clean when you'd rather be outside? We…
Smart Home

Echo Plus (1st-gen) vs. Echo Plus (2nd-gen): How exactly do they compare?

Which Echo Plus should you buy? This guide compares the first-generation Echo Plus its latest successor, allowing you to get a better idea regarding the ins and outs of each device.
Deals

Amazon and Best Buy smash prices on August smart home security locks

Amazon and Best Buy have the lowest prices for two August smart home door locks during a limited time sale. August was one of the first smart door lock companies designed specifically for smart home convenience and security.
Deals

The best Amazon Prime Day 2019 deals: Everything you need to know

Amazon Prime Day 2019 is still a few months off, but it's never too early to start preparing. We've been taking a look at the best discounts from previous Prime Days to give you our predictions of what to expect this year.
Smart Home

Get baked while you bake with these clever cannabis cooking gadgets

Ready to step up your edibles game? Here are the best cannabis cooking gadgets for your kitchen, from an "Instant Pot" for your cannabutter to the best grinders and decarbing devices on the market. Check out the full list for more.
News

This hybrid tiny home sauna gives hotbox a whole new meaning

Tiny homes seem to come in all shapes and forms these days, and Igluhuts are no exception. While the homes look more like a hobbit might come out of one on the outside, inside, there's a modern and sleek look aimed at relaxation and…