Introducing an 'ultrasonic knife' that uses the power of ultrasound to easily cut food, with a video showing how it actually cuts
Seattle Ultrasonics
https://seattleultrasonics.com/
You can see what the ultrasonic knife developed by Seattle Ultrasonics looks like by watching the video below.
The World's First Ultrasonic Chef's Knife for Home Cooks: Seattle Ultrasonics C-200 - YouTube
This is the ultrasonic knife from Seattle Ultrasonics.
If you look closely, you can see a button near the base of the blade. Pressing this button emits ultrasonic waves, causing tiny vibrations in the knife that are barely noticeable.
The ultrasonic vibrations are completely invisible to the naked eye and are not transmitted to the hand holding the knife. However, the tomato was sliced thinly with just a simple stroke of the blade.
It is also possible to cut just the top part of a piece of fruit without even holding it down with your hand.
Scott Heimendinger, founder of Seattle Ultrasonics, has been developing various home cooking appliances for the past 15 years.
Heimendinger is particularly interested in incorporating industrial technology into cookware.
The impetus for developing the ultrasonic knife came from a video he happened to watch on YouTube about an ultrasonic food cutter.
These ultrasonic food shredders work by passing high amplitude ultrasonic energy through a cutting head.
When you watch the ultrasonic knife developed by Heimendinger in slow motion, you can see that the blade vibrates back and forth by just 10 to 20 microns. This motion is repeated at a high frequency of more than 40,000 times per second, so the blade remains sharp even when worn.
This allows the ultrasonic knife to cut ingredients with less effort.
We will check the performance of the ultrasonic knife using a robot that can accurately measure the cutting force while cutting.
The results showed that when the ultrasound was turned on, it was possible to cut food with about half the force required compared to when it was turned off. Because it cuts without using much force, even soft, easily crumbled food can be cut cleanly without being crushed.
Another advantage is that when the ultrasonic function is turned on, the blade constantly emits minute vibrations, which prevents food from sticking to the blade.
If you put salt on the blade and turn on the ultrasonic wave, you can clearly see the vibrations.
You can also see that liquids such as fruit juice that come into contact with the blade tip turn into mist.
The ultrasonic knife developed by Heimendinger has a three-layer structure and is made from Japanese steel.
It can be sharpened in the same way as a regular knife.
The battery can be charged using a USB Type-C cable.
It can also be charged in the optional wireless charging case.
Heimendinger conducted research and development for six years and tried dozens of different blade shapes.
After rebuilding the circuit board many times, it was finally completed.
TheC-200 Ultrasonic Chef's Knife , developed by Heimendinger, costs 58,100 yen (tax included) for the version without the wireless charging case.
The ' Knife and Charger Bundle ' with a wireless charging case was priced at 75,000 yen including tax.
In addition, Seattle Ultrasonics collected more than 100,000 data points on 21 popular knives worldwide in the process of elucidating the mechanism of 'cutting' and has published a 'ranking of knives that are excellent for cutting food' based on the results.
Knife Database – Seattle Ultrasonics
https://seattleultrasonics.com/pages/knife-database
At the top of the rankings were the Shun Classic Chef's Dimple 200mm fromthe Shun series , a knife brand by Kai Corporation, and Wusthof's Classic Gyuto 20cm .
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