Live data from Hacker News

Ultrasonic Chef's Knife

seattleultrasonics.com

131–140 of 697 posts

Re: Ultrasonic Chef's Knife

#131

Maybe I'm just a sci-fi nerd who loves innovation, but this is so cool! Clearly, this product is not intended for the mass market, and may find purchase with people who have tennis elbow and who can afford it, etc. . But still, when was the last time someone tried to re-invent something as basic as a knife?

knife is already perfect

Re: Ultrasonic Chef's Knife

#132

This is a QVC product with the name of a US tech city slapped on it. Signed, a guy living nearby the home of QVC in a decidedly non-tech area of the US. Ps. don’t buy future e-waste kitchen ware unless you have accessibility reasons. You can get a good-enough victoronix 8” chef knife for $65 (I paid $36 a long time ago) and a world class chef knife for less than $250.

Check out Japanese knives. The Tojiro DP I got for an inflation adjusted $75 is a dramatically better knife than that Victorinox.

Re: Ultrasonic Chef's Knife

#134
post #96

Elsewhere on the thread I pointed out that I'd noticed the video doesn't show anybody doing actual prep; making an easy but deliberate thin slice of a tomato is one thing, quickly dicing an onion or a bell pepper is a very different thing. To that observation I'd add (h/t my Slack friends) this interesting site Seattle Ultrasonics stood up: https://seattleultrasonics.com/pages/knife-database One thing I notice here i…

One obvious question is where on that list the product in question would fall.

Re: Ultrasonic Chef's Knife

#135
A different but far better piece of cutting edge technology is a modern, diamond-encrusted nickel/chrome-plated steel plate.

These things are now so sharp they can bring an edge profile back to a knife in five strokes without even needing lubrication (which is nice as water is a PITA when it causes corrosion between the steel bed and the plating.)

Every knife in your kitchen can be razor sharp in seconds and kept razor sharp whenever you need them to be. IMHO, far more useful than a single digi-vibro-knife.

Example product: Trend 300/1000 diamond sharpening kit.

Re: Ultrasonic Chef's Knife

#136
post #76

This is a QVC product with the name of a US tech city slapped on it. Signed, a guy living nearby the home of QVC in a decidedly non-tech area of the US. Ps. don’t buy future e-waste kitchen ware unless you have accessibility reasons. You can get a good-enough victoronix 8” chef knife for $65 (I paid $36 a long time ago) and a world class chef knife for less than $250.

Say more? I'd love to see a takedown of this, but this isn't one. QVC does not appear to sell this product, nor would its performance differ whether or not QVC did.

This is a semantic argument. This product smacks of being a garbage kitchen gadget. Whether or not it's a QVC product, it certainly looks like cheap white-label alibaba junk. Just look at that handle. Did they just slap a knifeblade into an electric nosehair trimmer?

I'd try one out of professional/academic curiosity (I'm a chef), but am highly skeptical of this product. It looks like absolute trash.

All the people saying this knife does anything remarkable clearly have no experience in maintaining a decent knife blade. I've got knives that I've had for over 20 years that perform as well as this thing appears to (in the slick prepared advertisement).

Having said all that, you won't find an accurate takedown of a product that isn't on the market yet. Still, I can't help but wonder if the person behind this had dedicated that effort towards helping mitigate the water crisis, deforestation, or any number of other inarguably nobler pursuits.

Re: Ultrasonic Chef's Knife

#137

Earlier quoted context omitted.

Whetstones, pretty cheap only and not as hard as it seems.

just want to point out that maintaining a knife is a whole hobby that requires a time investment of learning the skill and storage of additional tools and materials. i'm surprised at all the apparent knife enthusiast posts trashing this device. I take my victorinox (which is absolutely nothing special and surprises me that it costs $60+ dollars) to the farmers market for sharpening but sharpness isn't even the proble…

Sharpening a knife to r/sharpening standards is hard. But just honing frequently and occasionally using a cheap sharpener will get you further than 95% of home chefs.

Re: Ultrasonic Chef's Knife

#138
post #76

Earlier quoted context omitted.

Say more? I'd love to see a takedown of this, but this isn't one. QVC does not appear to sell this product, nor would its performance differ whether or not QVC did.

This is a semantic argument. This product smacks of being a garbage kitchen gadget. Whether or not it's a QVC product, it certainly looks like cheap white-label alibaba junk. Just look at that handle. Did they just slap a knifeblade into an electric nosehair trimmer? I'd try one out of professional/academic curiosity (I'm a chef), but am highly skeptical of this product. It looks like absolute trash. All the people s…

Is that what they meant to say? "This looks like a gadget"? Then why did they say "coming from someone living nearby the home of QVC"?

I think basically the whole thread is acknowledging that this looks like a gadget!

Re: Ultrasonic Chef's Knife

#139
post #42

Earlier quoted context omitted.

the next version will come with plasma micro jets ejection from the cutting edge - convenient for civilian use. I'm also wandering about an array of shaped micro-charges on the edge - should be able to cut through several millimeters of steel in one move, etc. so a soldier can cut though an opponent's ballistic vest or a into an lightly armored IFV.

A shaped charge is sadly the opposite of sharp so it would be a one time use blade that would be dull before and after That one use would be anything but dull though

You can have it sharp with shaped charges array sitting a bit deeper and sideways, and new edge breaking out as side effect of shaped charges exploding, rinse and repeat, about 5 times for a regularly sized sword.

Even more interesting alternative is to have some quick blade switching machinery to switch on-the-fly between the actual blade edge and the shaped charge array and to add some feeding machinery of shaped charges into the array (and to have some stretch-shaped charges instead of the rounded ones)

Re: Ultrasonic Chef's Knife

#140

Earlier quoted context omitted.

It's not made for people with knife skills.

It absolutely is. I’m a former chef and have great knife skills but would love one of these.

I’m a former chef too and have knife skills but, no. Overripe tomatoes, grapes, carrots, meat near cartilage? No problem at all with the right tool.
Post reply on HN