Mercer Culinary Renaissance Granton Edge Santoku 7 in (M23590)
By Mercer Culinary · Kitchen Knives · Kitchen & Cooking · More from Mercer Culinary
- One-piece precision forged high-carbon German steel, HRC 56 ±1
- Blade angle 15°, taper-ground Granton edge, blade 7 in (17.8 cm)
- Triple-riveted Delrin handle, full tang, shortened bolster for full-edge sharpening
- NSF certified, made in Taiwan, limited lifetime warranty
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Summary
A 7 in forged santoku with a Granton edge for home cooks and culinary students who will hone regularly. Check that you will hand wash after each use and hone often before you buy.
Strengths
- One-piece precision-forged blade with full tang and triple-riveted Delrin handle
- Shortened bolster leaves the full edge exposed for sharpening
- NSF certified for commercial use
- Owners in r/chefknives describe the Renaissance line as a solid basic knife that cuts well
- Owners report culinary schools issue Mercer knife kits to students
Weaknesses
- Steel at HRC 56 ± 1 is softer than same-grade German knives and needs frequent honing and sharpening
- Dishwasher use is discouraged by the manufacturer and excluded from warranty coverage
- Warranty excludes dullness from normal wear and damage from glass, marble, frozen food, bones, cans and jars
- Warranty claims require buyer-paid inbound shipping and allow up to 4–6 weeks for inspection
- No blades, handles or rivets are sold separately, so service is whole-knife warranty only
Verified specifications
| Item No. | M23590 |
|---|---|
| Size | 7 in (17.8 cm) |
| Blade steel | high-carbon German steel, grade X50CrMoV15 |
| Hardness | HRC 56 ± 1 |
| Blade angle | 15° double bevel |
| Edge | taper-ground Granton edge |
| Construction | one-piece precision forged |
| Tang | full tang running the entire length of the handle |
| Handle | black Delrin, triple riveted |
| Bolster | shortened bolster that exposes the full blade edge for sharpening |
| Blade width | 1.75 in |
| Spine thickness | 2.55 mm |
| Spine | rounded, per manufacturer |
| Certification | NSF certified |
| Country of origin | Taiwan |
| Packaging | Mercer Pak, with no sheath, guard or block listed as included |
| Warranty | Limited Lifetime for consumers, 25 years for corporate users |
Full research notes and sources
Sources
Manufacturer:
- Mercer Culinary — Renaissance Granton Edge Santoku 7 in
- Mercer Culinary — Renaissance cutlery category listing
- Mercer Culinary — Limited warranty terms
- Mercer Culinary — Use and care guidance
Independent reviews:
- The Rational Kitchen — Mercer knives review
- Knife Merchant — Mercer Renaissance 7 in Santoku specifications
- KaTOM — Mercer Culinary M23590 specifications
- WebstaurantStore — Mercer Culinary M23590 product listing
Owner reports:


