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Ultrasonic Chef's Knife

seattleultrasonics.com

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Re: Ultrasonic Chef's Knife

#611

Post by cogman10 »

giardini wrote: post #605
dlcarrier wrote: post #352

Earlier quoted context omitted.

>People spend hundreds of dollars and many hours sharpening kitchen knives... What amazes me is how many people spend absolutely zero time sharpening knives, using decades-old knives that have never been sharpened and can't even cut through cucumbers.

Amy's Trick: ============ You can sharpen (really, burnish) steel knives on a stainless steel sink edge! Stainless steel kitchen sinks are very common in USA. Gently press the knife blade almost flat against the sink edge and pull the knife handle toward you while moving it to the right (or to the left if you're left-handed). Hold the knife at the angle desired for the blade edge (endless discussions of angle are pos…

That will knock the burs straight but won't really sharpen the knife (much like a honing rod). After a single use or two your knife will be just as dull as before you knocked the burs straight.

Re: Ultrasonic Chef's Knife

#613

Post by throw0101c »

Zigurd wrote: post #589
dlcarrier wrote: post #352

Earlier quoted context omitted.

>People spend hundreds of dollars and many hours sharpening kitchen knives... What amazes me is how many people spend absolutely zero time sharpening knives, using decades-old knives that have never been sharpened and can't even cut through cucumbers.

People worry that they will ruin their knives in an attempt to sharpen them. They don't know that they always have the backstop of going to a competent kitchen store and having them sharpened there. I worry about ruining knives with a cheap sharpener I got at IKEA. So I don't buy super expensive knives. I buy commercial grade knives from Dexter and Mercer. I sharpen them to the best of my ability. The results are no…

> People worry that they will ruin their knives in an attempt to sharpen them.

Find a local restaurant supply store and pay like $15 to get it professionally done.

Re: Ultrasonic Chef's Knife

#614

Post by ars »

SilverElfin wrote: post #240
Mtinie wrote: post #219

Earlier quoted context omitted.

I shared this with my tech friends: “This has all the hallmarks of a product that’s going to be disappointing but I’m so optimistic it won’t be.” I’m seriously hopefuls it works because vibroblades (I mean, “progressive knives” and “high frequency blade”) are awesome and the timelines of Neon Genesis Evangelion and Metal Gear are getting closer. Which may, or may not be a good thing.

Well we know this tech works because there are already ultrasonic cutters in medical and industrial equipment. So it’s more about whether they implemented it well, rather than some new fundamental discovery.

And for home use: https://www.amazon.com/dp/B0FK9SB5KR

HOZO NeoBlade Wireless Ultrasonic Cutter

Re: Ultrasonic Chef's Knife

#615

Post by ars »

cjbgkagh wrote: post #33
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?

Ultrasonic knives are used commercially, this is an attempt at a mass market by making it cheaper and packaging it in a more familiar form.

They also make one for home use: https://www.amazon.com/dp/B0FK9SB5KR

HOZO NeoBlade Wireless Ultrasonic Cutter

It's from a kickstarter.

Re: Ultrasonic Chef's Knife

#616

Post by pkulak »

arp242 wrote: post #279
pkulak wrote: post #23

Earlier quoted context omitted.

There must be a limit though. Surely a light saber is not more safe than a dull knife.

It's not my impression that if you make a knife very very sharp it turns in to a lightsaber.

If you make it vibrate at ultrasonic speeds, maybe it has!

Re: Ultrasonic Chef's Knife

#618

Post by giardini »

cogman10 wrote: post #611
giardini wrote: post #605

Earlier quoted context omitted.

Amy's Trick: ============ You can sharpen (really, burnish) steel knives on a stainless steel sink edge! Stainless steel kitchen sinks are very common in USA. Gently press the knife blade almost flat against the sink edge and pull the knife handle toward you while moving it to the right (or to the left if you're left-handed). Hold the knife at the angle desired for the blade edge (endless discussions of angle are pos…

That will knock the burs straight but won't really sharpen the knife (much like a honing rod). After a single use or two your knife will be just as dull as before you knocked the burs straight.

It takes two seconds and you should clean and wipe your knife before use anyway.

Re: Ultrasonic Chef's Knife

#619

Post by peteforde »

com2kid wrote: post #595
peteforde wrote: post #561

Earlier quoted context omitted.

You're technically right that an air fryer is a type of small convection oven, but dismissing them as "stupid" ignores why they're so popular. The point isn't that they reinvent physics, it's that they package convection in a way that's faster, uses way less electricity, is easier to clean, and perfectly sized for 1-2 people. Most folks aren't cooking for a big family every meal. I often just want to make fries, roas…

The only thing I use my oven for is pies for holidays and to brown large trays of meats for parties when my grill isn't available. My wife cooks sausages in the oven but I think that is just plain wrong. That is however her singular usage of our oven. Fwiw we don't cook much western food, and we eat almost no prepackaged food. An air fryer would serve us 0 use. We do however use our instapot all the time!

I respect that. We're both operating with radically different goals and end results. If you're cooking primarily from a food culture that evolved without ovens then it's clear you don't need an air fryer OR a convection oven.

I would however suggest that this makes you poorly qualified to deem an entirely category of popular tools "stupid" just because you don't happen to use them.

Re: Ultrasonic Chef's Knife

#620

Post by TulliusCicero »

Taek wrote: post #243

I'm a bit surprised to see how much snark there is in the comment sections of this video. The requests for "let's see an independent chef use this knife to do real kitchen work" make total sense, but the moralizing around e-waste and losing fingers etc feels off balance. People spend hundreds of dollars and many hours sharpening kitchen knives, of course there's a viable market for sharper kitchen knives. And for e-w…

> I'm a bit surprised to see how much snark there is in the comment sections of this video.

It's "slashdot talks about the iPod announcement" all over again.

Unfortunately, communities tend to devolve other time into empty cynicism and negativity, and it's hard to stop, since obviously you don't want to ban 100% of cynical or negative comments.

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