Ultrasonic Chef's Knife • Hacker News Board

Re: Ultrasonic Chef's Knife

#51

Post by jstanley » Sat, Sep 20, 2025, 7:29 PM UTC

onlypassingthru wrote: post #21

YossarianFrPrez wrote: post #14

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?

> when was the last time someone tried to re-invent something as basic as a knife? A year ago? This one is designed for woodworkers. https://www.bourbonmoth.com/shop/p/the-bourbon-blade-origina...

I thought I recognised the name - Bourbon Moth is the guy who faked a video of oily rags self-igniting to make a video to advertise fireproof bins for woodworking.

This one: https://m.youtube.com/watch?v=3Gqi2cNCKQY

Debunking: https://m.youtube.com/watch?v=GEtU3bYyCtA

Re: Ultrasonic Chef's Knife

#52

Post by tsimionescu » Sat, Sep 20, 2025, 7:34 PM UTC

jmarchello wrote: post #2

We made it! We’ve finally invented vibroblades!

Now if they could get the vibrations by shooting a bullet along the edge, we'd also have gunblades!

Re: Ultrasonic Chef's Knife

#53

Post by phailhaus » Sat, Sep 20, 2025, 7:37 PM UTC

tra3 wrote: post #3

What happens when you “oops”? All the way through the bone?

He specifically says it's not a lightsaber, and when he's cutting the tomato you can see he does have to apply force for it to go through. He compares it to an ebike, where it makes cutting easier but it's not magic.

Re: Ultrasonic Chef's Knife

#54

Post by martini333 » Sat, Sep 20, 2025, 7:39 PM UTC

dsr_ wrote: post #47

It certainly would be nice to have three or four independent reviews from people with knife skills.

It's not made for people with knife skills.

Re: Ultrasonic Chef's Knife

#55

Post by leeoniya » Sat, Sep 20, 2025, 7:41 PM UTC

all the comparisons in the vid show knives being pushed through the food. that's not a good way to use a knife.

if you used a knife to actually slice the tomato instead of chopping it, you'd get a much different force result.

not to say there's no benefit here, but def feels intentionally exaggerated.

also, i wonder how fast this blade will wear if you ever accidentally pressed the edge into the cutting block. my guess is that it will wear much faster.

Re: Ultrasonic Chef's Knife

#56

Post by psyclobe » Sat, Sep 20, 2025, 7:41 PM UTC

fumeux_fume wrote: post #4

While I think this is neat, I doubt the added complexity of the device, extra space required for storage of charger and the chore of charging it are worth the benefit of a slightly better, easier slice. Might be nice for people with certain disabilities though.

I think it would be fine as u would need a lot less knives so one bespoke one with a charger wouldn’t be that big of a deal

Re: Ultrasonic Chef's Knife

#57

Post by saaaaaam » Sat, Sep 20, 2025, 7:43 PM UTC

fumeux_fume wrote: post #4

While I think this is neat, I doubt the added complexity of the device, extra space required for storage of charger and the chore of charging it are worth the benefit of a slightly better, easier slice. Might be nice for people with certain disabilities though.

How much do you actually cook though? As a former professional chef I still do a lot of cooking and I’d love one of these and any storage trade off looks absolutely worth while.

Re: Ultrasonic Chef's Knife

#58

Post by saaaaaam » Sat, Sep 20, 2025, 7:43 PM UTC

martini333 wrote: post #54

dsr_ wrote: post #47

It certainly would be nice to have three or four independent reviews from people with knife skills.

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.

Re: Ultrasonic Chef's Knife

#59

Post by xboxnolifes » Sat, Sep 20, 2025, 7:44 PM UTC

rcdemski wrote: post #32

cush wrote: post #24

If you have a sharp knife and a wet cloth under your cutting board chopping is a joy, otherwise it's a dangerous, tedious, and exhausting task that turns so many people away from cooking entirely

Why a wet cloth?

So bad cutting boards don't slide.

Re: Ultrasonic Chef's Knife

#60

Post by kulahan » Sat, Sep 20, 2025, 7:45 PM UTC

leeoniya wrote: post #55

all the comparisons in the vid show knives being pushed through the food. that's not a good way to use a knife. if you used a knife to actually slice the tomato instead of chopping it, you'd get a much different force result. not to say there's no benefit here, but def feels intentionally exaggerated. also, i wonder how fast this blade will wear if you ever accidentally pressed the edge into the cutting block. my gue…

That’s not necessary with an ultrasonic knife and would generally be a waste of time. The vibrations take the place of needing to slice, rather than chop. This knife is not meant to be used like a normal chef’s knife.

I’d still never get one because I love my knives (and zen out hard when sharpening for an hour or two), but the push is literally the goal here.