Yamashin has been producing honest, hard-working kitchen knives in Tosa, Japan, for generations, and this White #1 Bunka is a perfect example of what makes their work so well regarded. Tosa is one of Japan's most productive knife-making regions, known for turning out blades that prioritize real-world performance over flash. Shirogami — meaning white paper steel — is among the purest carbon steels available, prized by sharpening enthusiasts for how easily it takes a razor edge and how well it holds it through heavy use.
This bunka is hammer-forged in a san mai construction, with a Shirogami #1 core clad in soft iron that develops a beautiful patina over time. The bunka profile combines a flat cutting section with a distinctive angled tip, making it equally at home slicing, dicing, and doing detail work. At 56mm tall, this knife runs noticeably taller than most bunkas, giving it extra authority on the cutting board and making it easy to scoop cut ingredients directly from board to pan. The walnut octagonal handle with black pakka wood ferrule completes a knife that looks and feels far more expensive than it is.
Customers are consistently impressed by what this knife delivers at its price point. The extra blade height is a recurring favorite — cooks love how effortlessly it scoops vegetables from the board. It arrives razor sharp out of the box, the fit and finish earn high marks, and after a little time on the stones, it performs like a true workhorse. One professional cook reported dispatching an 80-pound bag of carrots in under 20 minutes — high praise for any knife at any price.
Carbon steel care is straightforward. Wipe the blade clean during use and dry it immediately after washing. Avoid leaving water or acidic foods on the blade for any length of time. The soft iron cladding will develop a natural patina with use, which adds character and provides a measure of protection. Each knife is made by hand so measurements may vary.Maker: Yamashin
Location: Tosa, Japan
Construction: Hammer Forged, San Mai
Edge Steel: Shirogami #1 (White Paper Steel)
Cladding: Soft Iron
HRC: 60+
Edge Grind: 50/50
Handle: Walnut Octagonal
Ferrule: Black Pakka Wood
Weight: 6.5 oz (184 g)
Blade Length: 176 mm
Total Length: 318 mm
Spine Thickness at Heel: 3 mm
Blade Height: 56 mm
This bunka is hammer-forged in a san mai construction, with a Shirogami #1 core clad in soft iron that develops a beautiful patina over time. The bunka profile combines a flat cutting section with a distinctive angled tip, making it equally at home slicing, dicing, and doing detail work. At 56mm tall, this knife runs noticeably taller than most bunkas, giving it extra authority on the cutting board and making it easy to scoop cut ingredients directly from board to pan. The walnut octagonal handle with black pakka wood ferrule completes a knife that looks and feels far more expensive than it is.
Customers are consistently impressed by what this knife delivers at its price point. The extra blade height is a recurring favorite — cooks love how effortlessly it scoops vegetables from the board. It arrives razor sharp out of the box, the fit and finish earn high marks, and after a little time on the stones, it performs like a true workhorse. One professional cook reported dispatching an 80-pound bag of carrots in under 20 minutes — high praise for any knife at any price.
Carbon steel care is straightforward. Wipe the blade clean during use and dry it immediately after washing. Avoid leaving water or acidic foods on the blade for any length of time. The soft iron cladding will develop a natural patina with use, which adds character and provides a measure of protection. Each knife is made by hand so measurements may vary.
Great Bunka! Knife It's a good one!Posted By: Greg Lappe
41 people found this review helpful
This is a great rustic Bunka for the price. It's taller than a standard Bunka's height and that is the reason that I wanted this one, for scooping cut veggies with. Razer sharp out of the box! The handle is also very nice especially for this price point IMHO.
41 people found this review helpful
This is a great rustic Bunka for the price. It's taller than a standard Bunka's height and that is the reason that I wanted this one, for scooping cut veggies with. Razer sharp out of the box! The handle is also very nice especially for this price point IMHO.
Okay Posted By: christopher day - verified customer
48 people found this review helpful
Sales and service are always excellent, But not sure if this was a prototype of a design the edge near the choil was really not finished once I had thrown it through a few stones it was fixed and ended up being a real workhorse for the line I can kill an 80 lbs bag of carrots in under 20 mins with the small issue on the edge it became one on my favorites to use
48 people found this review helpful
Sales and service are always excellent, But not sure if this was a prototype of a design the edge near the choil was really not finished once I had thrown it through a few stones it was fixed and ended up being a real workhorse for the line I can kill an 80 lbs bag of carrots in under 20 mins with the small issue on the edge it became one on my favorites to use
