Gyuto 230mm SanMai Damascus Twist 135Cr3 Full Polish


A meticulously crafted Gyuto designed to meet the highest standards of professional and home chefs alike. With a 229mm edge length, this Gyuto is built for versatility and precision. The blade is forged from 135Cr3 steel with a three-layer San Mai construction, and an incredibly tight twist Damascus cladding (150 layers of wrought iron and 135Cr3 folded and twisted together).

Designed for superior performance, the knife features a full convex geometry, completed on whetstones. Milan worked the initial geometry on 100#-200# grit flat and convex stones, a skill that he acquired while training with expert sword polisher Damian Kordic. This is an extremely challenging process and requires the blade to be regularly straightened. The process also requires that the blade is forged extremely precisely, or it simply won’t be possible to complete an even polish.

Once the initial geometry was complete, the remaining work was done on convex stones from 400# through to 6k and finally polished with a mid-hard uchigumori natural stone and two types of finger stones, one soft made of uchigumori and one hard made of nakayama. The detailed hand-polishing process ensures an impeccable, even finish that enhances both performance and aesthetics.

Milan has included a set of finger stones to help you maintain the knife's beautiful finish.

The handle is crafted from exquisite bog oak, known for its rich dark color and incredible figure. It gives the blade a natural warmth, while letting the stunning blade shine.

Complete with a matching bog oak saya for safe storage, this is an exceptional high-performance kitchen knife with a stunning traditionally crafted aesthetic.

Product Specification

Blade Type: Gyuto

Edge Length: 229mm

Spine Heel: 2.9mm

Spine Mid: 2.09

Spine Tip (20mm before): 0.48

Blade Height: 52mm

Weight: 179g

Cutting Edge Steel: 135Cr3

Stainless: No

HRC: 65

Blade Construction: 3 Layer (San Mai)

Blade Finish: Acid Etched (Forced Patina)

Grind: Walkschliff

Handle Construction: Hidden Tang

Handle Materials: Bog Oak

Handedness: Ambidextrous

Saya Included: Yes

Shipping & Returns


We process orders 5 days a week (Monday - Friday) and ship from our shop in Berlin, Germany. We ship with FedEx, UPS and Deutsche Post.

We are happy to offer free international shipping on a variety of orders depending on location and order value. You can check to see where things sit for you here.


At Modern Cooking we want our customers to be inspired and delighted by the products they purchase through our shop.

However, we understand that you may need to return products occasionally. If you are not entirely happy, you can return your purchase in its original condition within 14 days for a refund. Please email if you wish to return any goods.

In the unlikely event that you receive faulty goods or your order is damaged in transit, please contact us for instructions on how to return the goods as in this case we will meet the cost of return postage, though only if this is arranged through our authorised carriers. Any claim for refund or exchange resulting from faulty goods or goods damaged in transit must be raised within 5 business days.

All Modern Cooking logistics partners provide insurance in case of damage, but the coverage is only valid if we are notified within 5 business days. Please make sure to inspect your order immediately upon receipt to ensure that there is no damage.

Once we have the goods back, we will issue a full refund or send replacements where possible, as you prefer.

Product Care:

Cleaning: Clean by hand with warm water. Avoid wetting the handle when possible. 

Sharpening: We advise using whetstones to sharpen your knives and a honing rod or steel to maintain the burr between sharpening sessions. 

Reactive Steels: Reactive steels like Aogami Super, Apex Ultra or one of the many premium reactive German and Swedish steels are susceptible to rust if not properly cared for. In this case we advise that you keep the knife dry between uses and when storing the knife for longer periods wiping the knife blade with Tsubaki oil or another food safe oil is a wise choice. This will not stop a patina forming on the blade, but it will stop rust. A patina can be a beautiful personal feature on your knife and helps to stop rust forming. So, dry your knife regularly between uses, store in a dry place and apply some Tsubaki oil from time to time when storing for long periods. 

A reference guide to steel types

Handle Care: If you have a knife with a non-stabilised wooden handle, you can apply Tsubaki oil or another food safe oil to your handle from time to time. Food safe wax can be applied to both stabilised and no-stabilised wooden handles. Never apply hot wax or oil as you risk warping or damaging the handle.