Collaborations
Let’s discuss videos with brands and creators, product-focused projects, filming and editorial features.
- Social media and YouTube collaborations
- Product features and content creation
- Filming and media interviews

Sharpening Culture to the World

Sharpen. Share.
Connect.
Bringing craftsmanship closer to you.
New connections, through knives and whetstones.


Meet Kenshi Ryota
Craftsman at JIKKO
Knife sharpener, blade finisher and video creator

Hello, I’m Kenshi Ryota.
From Japanese cuisine to the craft of sharpening.
My approach to sharpness draws on my experience using knives in a professional kitchen. A blade’s structure, its condition and its relationship with the whetstone all guide my daily practice.
I also want to share what makes sharpening so fascinating. On social media, I create videos that make sharpness visible. On YouTube, I explore sharpening techniques and the knowledge behind them.
Began working as a Japanese cuisine chef
at a members-only resort hotel in Arima Onsen.
Became a knife sharpener at JIKKO.
Pursuing the craft of sharpening and blade finishing.

THE ART OF SHARPENING
Sharpening workshop inquiries are welcome from culinary schools and restaurants around the world.
Sharing skills and knowledge. Bringing sharpening culture to the world.
Let’s discuss the location, dates, programme and fees.
What we can create together
For businesses, brands and fellow creators.
Get in touch, even if your idea is just taking shape.
Let’s discuss videos with brands and creators, product-focused projects, filming and editorial features.
Bring the appeal of Japanese knives to your audience through sharpening demonstrations and talks. Let’s explore a format that fits your event.
For culinary schools and restaurants worldwide. From working with knives and whetstones to understanding sharpness, let’s plan training around your participants’ experience and goals.
Scope, dates, location and fees are arranged together. For overseas training, please include your school or restaurant name, country, city and participant numbers. Knife-sharpening inquiries are also welcome.

EXPLORE MORE
Go a little deeper into the world of sharpening.
Explore the official JIKKO shop
A community for exploring sharpening in depth
COMMUNITY / SHARPENING LAB
Explore sharpening more deeply.
Two plans to suit how you want to learn.
See each plan’s LaunchPass page for pricing and enrollment.
Get in touch
Collaborations, events and workshops.
Tell me what you have in mind.
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REVIEW YOUR REQUEST
To: contact@kenshi-ryota.com
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Everyday sharpening, and beyond.
A world of sharpening,
on your screen.
From remarkable sharpness to detailed explanations.
Follow my work across these channels.
Instagram
1.4MfollowersSharpening, through photos and Reels.
@kenshi_ryotaOpen profile (new tab)▶TECHNIQUE & KNOWLEDGEYouTube
1.2MsubscribersExplore sharpening techniques and knowledge.
@kenshi_ryotaOpen channel (new tab)