Japanese web info list

Kitchen Knife Forums

Help Support Kitchen Knife Forums:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
https://item.rakuten.co.jp/honmamon-r/hw_my300/
軟鉄と鋼の鍛接跡の“地境”がある。

稀に、この地境に微かな隙間がみられるが、 包丁の硬度を高めるために、

職人が“低温で丁寧に鍛接した証”である

There is a “ground boundary” of forging marks of soft iron and steel. In rare cases, a slight gap can be seen in this boundary, but in order to increase the hardness of the knife, It is proof that the craftsman carefully forged at a low temperature.

Screenshot_20230814-142910.png
 
Last edited:
Some old style knives have heels shorter than the middle of the blade. Kind of awkward to use, but more curve makes things slice easier. Puts more weight toward the tip, and encourages the knife to follow the arc. A style of Tokyo nakiri I think, have this.

Also, when doing initial ura work, the uraoshi line can make contact everywhere except one spot in the middle of the blade. First, bend the knife away from the ura, so that part of the ura can be sharpened to establish the line. Then straighten back, and sharpen as normal. Use a flat plat as reference. This helps to avoid hammering the iron.

I think this can also be done to make the uraoshi sharpen more evenly, by bending and thickening the uraoshi line where it's thin, but I haven't tried that yet. I've only done it where the line is non-existent, and no uraoshi means duburring cannot be done unless the knife sharpened with a back bevel
 
Angerstone Axe Sharpener - 3.8”Oversized Axe/Hatchet Sharpening Stone - Whetstone Blade & Tool Sharpener, Dual Grit 180/320 Sharpening Puck with cowhide Sheath for Bushcraft, Camping and Field Use
$15.99
Angerstone Axe Sharpener - 3.8”Oversized Axe/Hatchet Sharpening Stone - Whetstone Blade & Tool Sharpener, Dual Grit 180/320 Sharpening Puck with cowhide Sheath for Bushcraft, Camping and Field Use Crazy Potato
HOSHANHO 8-Piece Kitchen Knife Set, Japanese AUS-10 Super Steel Knife Set with Block, Professional Ultra Sharp Chef Knife Set with Scissors
-23%
$199.99 $259.99
HOSHANHO 8-Piece Kitchen Knife Set, Japanese AUS-10 Super Steel Knife Set with Block, Professional Ultra Sharp Chef Knife Set with Scissors HSH-DE
Kuisine Kitchen Chef Knife Block Set,High Carbon Stainless Steel Razor-Sharp Blade Ergonomic Handle,Knife Set Block with Built-in Sharpener,Elegant Gift(Black,15pcs)
-18%
$32.99 $39.99
Kuisine Kitchen Chef Knife Block Set,High Carbon Stainless Steel Razor-Sharp Blade Ergonomic Handle,Knife Set Block with Built-in Sharpener,Elegant Gift(Black,15pcs) Kuisine Direct US
Knife Set, 15 Pieces Kitchen Knife Set with Built in Sharpener, German High Carbon Stainless Steel Knife Block Set, Dishwasher Safe, Black
$79.99
Knife Set, 15 Pieces Kitchen Knife Set with Built in Sharpener, German High Carbon Stainless Steel Knife Block Set, Dishwasher Safe, Black Amorston Offical
Wakoli Damascus Kitchen Knife Set, 5 Piece Professional Chef Knife Set made from 67 Layers of Damascus Steel with VG10 Core, Knives Set for Kitchen with Pakkawood Handles in Wooden Gift Box (EDIB)
$259.00
Wakoli Damascus Kitchen Knife Set, 5 Piece Professional Chef Knife Set made from 67 Layers of Damascus Steel with VG10 Core, Knives Set for Kitchen with Pakkawood Handles in Wooden Gift Box (EDIB) OLEIO USA
YeopAsda Knife Sharpening Stone Set - Premium 4 Side Grit 400/1000 3000/8000 Whetstone Sharpener Kit - Non-Slip Bamboo Base,Cut Resistant Gloves, Angle Guide,Flatting Stone,Honing Guide,Leather Strop
$39.99
YeopAsda Knife Sharpening Stone Set - Premium 4 Side Grit 400/1000 3000/8000 Whetstone Sharpener Kit - Non-Slip Bamboo Base,Cut Resistant Gloves, Angle Guide,Flatting Stone,Honing Guide,Leather Strop YeopAsda
THRWCLUB Axe Sharpener 400/1000 Grit - Hatchet/Axe Sharpening Stone, Axe Blade Sharpener, Sharpening Puck, Lansky Puck, Dual Grit Multi-Purpose Hatchet Sharpening Tool with Leather Sheath
$9.99
THRWCLUB Axe Sharpener 400/1000 Grit - Hatchet/Axe Sharpening Stone, Axe Blade Sharpener, Sharpening Puck, Lansky Puck, Dual Grit Multi-Purpose Hatchet Sharpening Tool with Leather Sheath IEXPO
HENCKELS Razor-Sharp 20-Piece Statement Knife Set with Block, With Bonus Sharpener, German Engineered Knife Informed by over 100 Years of Masterful Knife Making
$199.95
HENCKELS Razor-Sharp 20-Piece Statement Knife Set with Block, With Bonus Sharpener, German Engineered Knife Informed by over 100 Years of Masterful Knife Making Knife Aid, Inc.
Knife Set, Astercook 21 Pieces Knife Sets for Kitchen with Block, Dishwasher Safe Kitchen Knife Set with Built-in Sharpener, German Stainless Steel Black Knife Block Set
-9%
$99.99 $109.99
Knife Set, Astercook 21 Pieces Knife Sets for Kitchen with Block, Dishwasher Safe Kitchen Knife Set with Built-in Sharpener, German Stainless Steel Black Knife Block Set Astercook
HiramWare Knife Sharpening Stone with Non-slip Rubber Base, 400/1000 Grit Premium Whetstone, Double-Sided Knife Sharpener for Kitchen, Waterstone for Honing Blades Manually
$8.99
HiramWare Knife Sharpening Stone with Non-slip Rubber Base, 400/1000 Grit Premium Whetstone, Double-Sided Knife Sharpener for Kitchen, Waterstone for Honing Blades Manually Hiram Deals
MIDO PROFESSIONAL ABRASIVE Knife Sharpening Stone 400/1000 Whetstone Sharpening Stone with Non-Slip Rubber Base for Kitchen, Hunting, and Pocket Knives or Blades
$9.99
MIDO PROFESSIONAL ABRASIVE Knife Sharpening Stone 400/1000 Whetstone Sharpening Stone with Non-Slip Rubber Base for Kitchen, Hunting, and Pocket Knives or Blades miduguoji
Intelitopia Complete Knife Sharpening Stone Set – Dual Grit Whetstone 400/1000 3000/8000 Knife Sharpener with Leather Strop, Flattening Stone, Bamboo Base, 3 Non-slip Rubber Bases & Angle Guide
-21%
$26.99 $33.99
Intelitopia Complete Knife Sharpening Stone Set – Dual Grit Whetstone 400/1000 3000/8000 Knife Sharpener with Leather Strop, Flattening Stone, Bamboo Base, 3 Non-slip Rubber Bases & Angle Guide keepooon
Angerstone Portable Whetstone Knife Sharpening Stone - Outdoor Hunting Knife Sharpener Stone Kit Dual Grit 400/1000 - Pocket Sharpening Stones for Knives with Cowhide Pouch for Bushcraft Camping Field
-7%
$13.99 $14.99
Angerstone Portable Whetstone Knife Sharpening Stone - Outdoor Hunting Knife Sharpener Stone Kit Dual Grit 400/1000 - Pocket Sharpening Stones for Knives with Cowhide Pouch for Bushcraft Camping Field Crazy Potato
Knife Set with Block, N NOBLE FAMILY 16Pcs Kitchen Knives Drawer Organizer Set with Sharpener, Cutting Board, Anti-Slip Chef Knives Set with 6Pcs Steak Knives, Black
-23%
$99.99 $129.99
Knife Set with Block, N NOBLE FAMILY 16Pcs Kitchen Knives Drawer Organizer Set with Sharpener, Cutting Board, Anti-Slip Chef Knives Set with 6Pcs Steak Knives, Black Jianyamei
MOSFiATA Kitchen Knife Set, 12 Pcs Japanese Stainless Steel Knife Sets for Kitchen with Oxford cloth storage bag with Knife Sharpening Rod, Dishwasher Safe, For Outdoor
$79.99
MOSFiATA Kitchen Knife Set, 12 Pcs Japanese Stainless Steel Knife Sets for Kitchen with Oxford cloth storage bag with Knife Sharpening Rod, Dishwasher Safe, For Outdoor iHome888
Dfito Chef Knife Sets with Roll Bag, 9 Pieces Professional Knife Set, High Carbon Stainless Steel Kitchen Chef Knife Set, Red Pakkawood Handle, Dishwasher Safe
$99.99
Dfito Chef Knife Sets with Roll Bag, 9 Pieces Professional Knife Set, High Carbon Stainless Steel Kitchen Chef Knife Set, Red Pakkawood Handle, Dishwasher Safe Dfito Direct
HOSHANHO 16-Piece Knife Set, Japanese AUS-10 Stainless Steel Kitchen Knife Set, Ultra Sharp Chef Knife Block Set with Sharpener
$428.99
HOSHANHO 16-Piece Knife Set, Japanese AUS-10 Stainless Steel Kitchen Knife Set, Ultra Sharp Chef Knife Block Set with Sharpener HSH-DE
Sharp Pebble Premium Whetstone Knife Sharpening Stone 2 Side Grit 1000/6000 Waterstone- Whetstone Knife Sharpener- NonSlip Bamboo Base & Angle Guide
$42.99
Sharp Pebble Premium Whetstone Knife Sharpening Stone 2 Side Grit 1000/6000 Waterstone- Whetstone Knife Sharpener- NonSlip Bamboo Base & Angle Guide MIGHTY DREAMS
Knife Sharpening Stone Kit, KERYE Professional Japanese Whetstone Sharpener Stone Set, Premium 4 Side Grit 400/1000 3000/8000 Water Stone, Flattening Stone, Angle Guide, Leather Strop, Anti Cut Gloves
-15%
$25.47 $29.99
Knife Sharpening Stone Kit, KERYE Professional Japanese Whetstone Sharpener Stone Set, Premium 4 Side Grit 400/1000 3000/8000 Water Stone, Flattening Stone, Angle Guide, Leather Strop, Anti Cut Gloves Woot
Knife Sharpening Stone - Dual Grit Whetstone 400/1000 3000/8000, Knife Sharpening Stone Set, Tpstone Knife Sharpener Tool,Easy to Use
$25.99
Knife Sharpening Stone - Dual Grit Whetstone 400/1000 3000/8000, Knife Sharpening Stone Set, Tpstone Knife Sharpener Tool,Easy to Use TPstone choice
Google image search, showing related images, seems to be a really great way to find related topics. Google search in Japanese usually just sucks. . . It only seems to index a couple of things in the regular manner. So I google search blacksmith and kitchen knife kanji, then go to images and click and click to find new info
 
refcast said:
https://item.rakuten.co.jp/honmamon-r/hw_my300/
軟鉄と鋼の鍛接跡の“地境”がある。

稀に、この地境に微かな隙間がみられるが、 包丁の硬度を高めるために、

職人が“低温で丁寧に鍛接した証”である

There is a “ground boundary” of forging marks of soft iron and steel. In rare cases, a slight gap can be seen in this boundary, but in order to increase the hardness of the knife, It is proof that the craftsman carefully forged at a low temperature.

View attachment 262271
Click to expand...
Ground boundary is a mistranslation. Ground refers to the mild steel layer of the blade, called 地金 jigane (vs 鋼 hagane). Jizakai then means the border (sakai) line where mild steel and carbon steel meet.
The people I work with never use jizakaki though, they only refer to the whole mild steel area on the back as Jiai and to the weld itself as kaisaki 開先 which means something like welding groove.

It’s not supposed to come apart but it does happen and it doesn’t actually matter at all but on the export market people tend to get their panties in a twist about it pretty hard. I’d trust a smith with the occasional aike (cold shut spot/ not properly welded spot) more than the ones who it never happens to. The latter mostly go at very high temperatures that negatively affect the steel during forging and forge welding.
 
Excuse the double post but I’d also like to share a resource (that’s probably well known already):

The best resource on Sakai knives and sharpening in my opinion is the suishin blog.
https://suisin.co.jp/daily-practice/or
https://world.suisin.co.jp/wp/daily-practice/
Aoki Tatsuya is great at sharpening and explaining things. The blog also illustrates the quality of high end Sakai knives very well.
 
You must log in or register to reply here.

Latest posts

Back
Top