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Ultrasonic Chef's Knife

seattleultrasonics.com

31–40 of 697 posts

Re: Ultrasonic Chef's Knife

#33

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.

Re: Ultrasonic Chef's Knife

#35
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?

I think the wet cloth is meant to increase friction between the surfaces

Re: Ultrasonic Chef's Knife

#38
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?

The wet cloth between the counter and the cutting block keeps the cutting block from sliding / moving on you when force is applied, which is more comfortable and safer.

Re: Ultrasonic Chef's Knife

#39

Don't buy dumb electronic kitchen gadgets. Get a good steel knife, learn how to sharpen it properly, and you're set for life.

In particular, you don't need expensive stones, guides or lapping systems to do it. An aliexpress-grade 3000/8000 waterstone, a flattening stone and a strop will get most knives shaving the hairs off your arm for under £20 all-in.

Re: Ultrasonic Chef's Knife

#40
post #28

A good quality well sharpened knife already works incredibly well, doesn't cost $500, doesn't need to be recharged, and isn't going to be e-waste in 5 years (when the battery fails). It's a cool idea, and I hope it is commercially successful, but not for me.

The battery is comes out for recharging, so replacing a dead battery should be trivial

It's a proprietary form factor, so you're gambling on replacements being available down the line. I don't think it'll be easy to rebuild the battery pack without compromising the casing.
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