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The shave test

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Eamon Burke

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He doesn't shave his goatee, so Murray Carter won't listen to him(just kiddin, MC), but this guy does a bada** demonstration. I wrote an article about this very thing recently, I would have loved to have had this video to prove the principle!

[video=youtube;QWSTE6WLB0Y]http://www.youtube.com/watch?v=QWSTE6WLB0Y&feature=related[/video]


If you can shave with obsidian, and nobody uses kitchen knives made from obsidian(for good reasons), then shaving is not a good indicator of a good kitchen edge.
 

tk59

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...If you can shave with obsidian, and nobody uses kitchen knives made from obsidian(for good reasons), then shaving is not a good indicator of a good kitchen edge.
This guy probably does use obsidian for kitchen knives, lol. Regardless, your logic is flawed. While it is not a definitive test, shaving is, in fact, a fine test of useful sharpness.
 

Rottman

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Didn't MC shave with a spoon. What does it prove then?
 

Eamon Burke

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It proves that he's pretty good at shaving. Shaving is shaving and you don't shave your food! And if you do, you might not want to share that.
 

EdipisReks

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an obsidian edge is far sharper than anything you can get with steel because of the way it fractures.
 

slowtyper

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very cool, did not know that about obsidian. I will remember it in case I'm ever in a situation where I'm held captive by my arch nemesis in his private office where he has a nice decorative display of core obsidian and a tigers tooth.
 

Rottman

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I know MC made the spoon for the demo, it was made from white #1.

Eamon's conclusion would work with machetes, axes and whatever people use to shave: "If you can shave with obsidian, and nobody uses kitchen knives made from obsidian(for good reasons), then shaving is not a good indicator of a good kitchen edge."
 

mr drinky

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an obsidian edge is far sharper than anything you can get with steel because of the way it fractures.
Interesting. Have you ever browsed the flint knapped knives at flintknappers.com? A lot of them are really cool looking (and a lot cheaper than what we buy on this forum).

I like this one.

flintknifesappele.jpg

Flint Knife.

k.
 

Mike Davis

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Didn't MC shave with a spoon. What does it prove then?
It proves he can sharpen the sh*t out of a spoon!
Seriously...Obsidian is an incredibly, incredibly sharp material. The problem with it is it has no edge stability. If you were to smack a cutting board with it, it would fracture and leave fractures in the product you are cutting. No one wants obsidian in their mouth, as it is pretty much the sharpest thing known to man. Shaving goes to show that there is great edge geometry, facial hair if far harder to shave than arm hair. If i make a knife sharp enough to shave facial hair, it should be sharp enough to cut pretty much anything it will ever need to cut...IMO
 

RRLOVER

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Shaving in a video with a knife you made is an indicator that you have some sort of marketing skills.There is nothing more to it then selling knives.
 

Eamon Burke

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Obsidian is an incredibly, incredibly sharp material. The problem with it is it has no edge stability. If you were to smack a cutting board with it, it would fracture and leave fractures in the product you are cutting.
My point exactly. Yet extremes of sharpness is the main focus for a lot of people with their kitchen knives, and shaving requires, in the very least, an extremely sharp edge. If extreme sharpness was the #1 need in a kitchen knife, the highest performance knives would be made from obsidian. We stopped using obsidian in the kitchen altogether a few thousand years ago because extreme sharpness isn't the #1 issue.

To me, the shave test and other sharpness tests are just feeding the misconception that it's all about sharp sharp sharp all the time. It would beg the question why they don't just use straight razors for sashimi?
 

Pensacola Tiger

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My point exactly. Yet extremes of sharpness is the main focus for a lot of people with their kitchen knives, and shaving requires, in the very least, an extremely sharp edge. If extreme sharpness was the #1 need in a kitchen knife, the highest performance knives would be made from obsidian. We stopped using obsidian in the kitchen altogether a few thousand years ago because extreme sharpness isn't the #1 issue.

To me, the shave test and other sharpness tests are just feeding the misconception that it's all about sharp sharp sharp all the time. It would beg the question why they don't just use straight razors for sashimi?
I seem to remember a YouTube video of someone using a straight razor to slice a garlic clove.
 

EdipisReks

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I seem to remember a YouTube video of someone using a straight razor to slice a garlic clove.
in Goodfellas a utility razor is used. i tried it, and found i could make as thin of cuts with a good gyuto and some technique.
 

tk59

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The reason why Eamon's rationale is flawed is because it implies that a hypothetical steel kitchen knife with an edge as sharp as obsidian would not be suitable for kitchen use.
 

EdipisReks

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a hypothetical steel kitchen knife with an edge as sharp as obsidian would probably travel through time and kill Hitler.
 

EdipisReks

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What's wrong with that?
absolutely nothing. as long as killing Hitler doesn't let the robot death squads from super-squirrel space invade, because they would be even worse.
 

tk59

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hmm. hadn't considered that... you might have something there.
 

Eamon Burke

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The reason why Eamon's rationale is flawed is because it implies that a hypothetical steel kitchen knife with an edge as sharp as obsidian would not be suitable for kitchen use.
No, it doesn't. Allow me to clarify my point visually.




I don't disagree with the point you make; the flaw you cited was just a miscommunication.
 

EdipisReks

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i would shave my balls with any of my knives, if i were so inclined, and they all stay sharp for pretty reasonable amounts of time when used for more typical kitchen knife tasks. i'm not really sure what this thread is about, as sharp can stay sharp.
 

Eamon Burke

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About the Hitler thing...I guess we need to hit the strops! Where's that .001 micron compound?


And the point of the thread is that:
1. Face shave tests for kitchen knives are stupid.
2. That guy is a total badass.
 

tk59

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i would shave my balls with any of my knives, if i were so inclined, and they all stay sharp for pretty reasonable amounts of time when used for more typical kitchen knife tasks. i'm not really sure what this thread is about, as sharp can stay sharp.
Uh... Thank you for that visual...
@Eamon: sounds good... except for the face-shaving with kitchen knives being stupid. I cannot agree with that having shaved exclusively with kitchen knives for about 4 months.:)
 

mr drinky

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I've never once considered putting any of my knives near my scrotum, but that is just me.

Stropping on the other hand....

k.
 

tk59

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You know, I seem to remember another thread months ago going into stropping at some point and then rapidly degenerating to this sort of talk...
 

slowtyper

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I've never once considered putting any of my knives near my scrotum, but that is just me.

Stropping on the other hand....

k.
I literally LOL'd for once.

"come on baby just hold the angle steady and pull the strop back.....no don't whip it off just stop and lift my balls and do it again
 

memorael

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Anyone know how to get the edges in that purple zone? seems like thats where the shi t is.
 
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