Stone Findings

Kitchen Knife Forums

Help Support Kitchen Knife Forums:

Joined
Mar 5, 2017
Messages
2,156
Reaction score
2,350
Location
Sao Paulo / Orlando
the website description is quite convincing… but not much feedback around here. anyone?
 

captaincaed

(____((__________()~~~
Joined
Aug 29, 2017
Messages
3,645
Reaction score
6,426
Location
Pacific Northwest
Thanks for the tip on the diamond, I picked one up after looking for several years. Work raise and better sharpening skills and steel that benefits from it all converged.

If anyone needs an even more expensive stone for razor sharpness, try this guy.

4F4849DF-437E-4DC4-A32D-E50A4F969713.jpeg
 

SirCutAlot

Banned
Joined
Aug 12, 2021
Messages
215
Reaction score
247
Location
Munich
Should be the finest stones available. Very good for razors and meat processing (most sought after stones for kosher clipping blades) .

i try`d them and they are really fine. Even good for last steps of Kasumi for the harder steel.

SirCutALot
 

Legion74

Well-Known Member
Joined
May 28, 2022
Messages
183
Reaction score
429
Location
Australia
Thanks for the tip on the diamond, I picked one up after looking for several years. Work raise and better sharpening skills and steel that benefits from it all converged.

If anyone needs an even more expensive stone for razor sharpness, try this guy.

View attachment 227167
And there is still four days to go.

Apparently it is rabbis that drive the crazy prices on those, because, as said above, they are considered a kosher stone for honing butcher knives, and other cutting implements with religious significance. Something I didn't know until a few months ago. There are also kosher examples of coticules.
 
Joined
Mar 11, 2018
Messages
2,907
Reaction score
9,308
Location
Richmond, VA
And there is still four days to go.

Apparently it is rabbis that drive the crazy prices on those, because, as said above, they are considered a kosher stone for honing butcher knives, and other cutting implements with religious significance. Something I didn't know until a few months ago. There are also kosher examples of coticules.
Very interesting. What makes a sharpening stone kosher or not kosher?
 

Legion74

Well-Known Member
Joined
May 28, 2022
Messages
183
Reaction score
429
Location
Australia
Very interesting. What makes a sharpening stone kosher or not kosher?
Well, with coticules, and I'm assuming Thuris are the same, they must be water stones, never used with oil. And they need to be free of cracks and imperfections that might absorb blood from the animal being butchered. They need to have a very pure and consistent colour. There may be other requirements I don't know of. Ardennes has, or had a seperate line of coticules they sold that met all the specifications.

The knives used need to be kosher as well, and there are a whole bunch of rules there too.

tough-standards-knife-sharpening-new-york
 

captaincaed

(____((__________()~~~
Joined
Aug 29, 2017
Messages
3,645
Reaction score
6,426
Location
Pacific Northwest
I suspect that one is high because of the combination colors. There are cheaper Eschers out there. But that’s a good fact to know about the high baseline.
 

coxhaus

Senior Member
Joined
Oct 27, 2020
Messages
1,982
Reaction score
2,402
Location
Texas
Well, with coticules, and I'm assuming Thuris are the same, they must be water stones, never used with oil. And they need to be free of cracks and imperfections that might absorb blood from the animal being butchered. They need to have a very pure and consistent colour. There may be other requirements I don't know of. Ardennes has, or had a seperate line of coticules they sold that met all the specifications.

The knives used need to be kosher as well, and there are a whole bunch of rules there too.

tough-standards-knife-sharpening-new-york
Sounds like the knives need to be surgical steel to qualify. They drop the knives in boiling water to clean them.
 

Desert Rat

Senior Member
Joined
Jun 25, 2019
Messages
499
Reaction score
679
Location
Idaho
I never understand some stuff like this. You can buy a brand new Dan's Surgical Black for less than that.

I have one of those wood Ikea poang chairs with the cushion. I have had it since I was in college. My wife wants to sell it because she thinks she can get $500 for it since it is "vintage." This is in spite of the fact that you can still buy the exact same chair from Ikea today brand new for less than $200. And the cushion probably won't have as much cat vomit on it.
It was the unusually large size that pushed those stones so high. I hope the black one was legit for the price paid, it did look the part but hard to say for sure.
 

captaincaed

(____((__________()~~~
Joined
Aug 29, 2017
Messages
3,645
Reaction score
6,426
Location
Pacific Northwest
Have to agree, the tl:dr is that it’s excellent. Expensive as F? Yes. Awesome as F? Also yes.
I’m pretty excited about this. Arrives tomorrow…

It was the unusually large size that pushed those stones so high. I hope the black one was legit for the price paid, it did look the part but hard to say for sure.
I inherited one of these. It’s pretty killer to have one as wide as a plane blade. But I’d be very hard pressed to pay that much for one.
 

cotedupy

Senior Member
Joined
Apr 27, 2020
Messages
3,477
Reaction score
8,168
Location
London
they must be water stones, never used with oil. And they need to be free of cracks and imperfections. They need to have a very pure and consistent colour.

No thank you Mr. Great Turk. We don't want any of your horrid grimy old whetstones over here!
 

HumbleHomeCook

Embrace your knifesculinity.
KKF Supporting Member
Joined
Oct 24, 2020
Messages
7,696
Reaction score
16,723
Location
PNW USA
It was the unusually large size that pushed those stones so high. I hope the black one was legit for the price paid, it did look the part but hard to say for sure.

Man, I wish I could find it now but I can't. Back when the Halls still owned Hall's Pro Edge, before selling to what is now RH Preyda, old man Hall did a video on how to sharpen a knife. Being already elderly and YouTube still being quite new, the Halls didn't have a ton of video content but this one always stood out to me as he was using this ginormous stone that only someone in the business could have.

My lustful memory may be exaggerating it some but not much when I say it seemed to be something like 3"x12 or 14" or so. It was this huge stone that he was making these long sweeping strokes back and forth (actually side to side) on. Probably a soft but no less impressive. Can't imagine there were many stones like that around even then let alone now.

I suspect Preyda got all the vid rights and maybe that's why they aren't out there any more.
 

captaincaed

(____((__________()~~~
Joined
Aug 29, 2017
Messages
3,645
Reaction score
6,426
Location
Pacific Northwest
Those big soft arks can still be found on these systems. The hard arks this size were a thing, haven’t been in a while.


The syrupy oil they sell these with IS effective at preventing load up, but god is it a bear to clean, especially after sitting for 20 years in an old timers garage.
 
Joined
Dec 27, 2021
Messages
5,033
Reaction score
9,863
Location
us
Interesting, the CBN Venev cost more than the diamond but it is thicker, hope they have a full size bench stone
 

BillHanna

5.99/mo or 60USD/yr
KKF Supporting Member
Joined
Apr 20, 2020
Messages
3,324
Reaction score
8,689
Location
Pennsylvania
Joined
Apr 4, 2020
Messages
150
Reaction score
249
Location
Berkeley

Greasylake

Thick knives save lives
Joined
Nov 27, 2021
Messages
710
Reaction score
2,040
Location
Houston
Are these the same stones that Bernal got recently? They look pretty similar to me

 

Kaisersoze

Member
Joined
Jan 28, 2022
Messages
11
Reaction score
9
Location
Portland OR
Interesting, the CBN Venev cost more than the diamond but it is thicker, hope they have a full size bench stone
You can get these electroplated CBN plates from Germany
CBN Plate Set 200/400 And 800/1200 With Holder » Schleifjunkies
There was a review on youtube I think Never a Dull moment and he felt they compared favorably to diamonds if I remember
I think gritomatic did have some metallic bonded 1000 grit CBN stones mounted on glass plates that were 8x3. Deadboxhero did a review on them (in like 2018) but I am not sure they were ever released. They were going to be expensive like $400 or something.
Of course you can get the spyderco CBN stones
Riko or Rikon or something like that is a bench stone brand for some CBN plates on some woodworking sites.
 
Last edited:

captaincaed

(____((__________()~~~
Joined
Aug 29, 2017
Messages
3,645
Reaction score
6,426
Location
Pacific Northwest
Joined
Oct 5, 2015
Messages
1,160
Reaction score
2,054
Location
North of MSP
Top