Mercer Culinary Genesis Short Bolster Chef's Knife 8 in (M21078)
By Mercer Culinary · Kitchen Knives · Kitchen & Cooking
- High-carbon German cutlery steel, precision forged
- Shortened bolster exposes the full edge for heel-to-tip sharpening
- Blade 8 in (20.3 cm), full tang, taper-ground edge
- Santoprene non-slip handle, limited lifetime warranty
Price not listed
- Mercer CulinaryView at Mercer Culinary
- WebstaurantStoreView at WebstaurantStore
- eBay (used) eBay: used, open-box, refurbishedView at eBay (used)
- eBayView at eBay
- AmazonView at Amazon
Prices are snapshots. Check the current price with the store.
Summary
An 8-inch forged chef’s knife with German steel, a short bolster and a non-slip Santoprene handle for daily home prep. Check the care routine before you buy: it needs frequent sharpening and hand washing.
Strengths
- Forged full-tang build with NSF certification and a limited lifetime warranty.
- Short bolster exposes the full edge for heel-to-tip sharpening without a full-bolster dead zone.
- Soft steel comes back sharp quickly on a whetstone.
- Black Santoprene handle holds grip with wet hands.
Weaknesses
- Soft steel loses edge faster than harder premium steels and needs frequent resharpening.
- Some owners move to 17-18 degrees or 20-25 degrees instead of the factory 15 degrees to hold an edge longer.
- The remaining bolster still makes sharpening all the way to the heel difficult.
- Hand-wash only, since dishwasher heat and detergent can pit the blade and wear the handle.
- No instrumented sharpness or edge-retention measurements have been published for this exact model.
Verified specifications
| Model | M21078, 8 in (20.3 cm) short-bolster chef’s knife. |
|---|---|
| Hardness | HRC 56+/-1. |
| Construction | precision forged, full tang. |
| Edge | taper-ground fine edge at 15 degrees. |
| Bolster | shortened bolster exposing the full edge for sharpening. |
| Handle | black Santoprene, non-slip. |
| Certification | NSF certified. |
| Packaging | Mercer Pak. |
| Warranty | limited lifetime warranty, 25 years for corporate users. |
| Accessory | Knife Guard M33113P is the recommended guard. |
| Care | hand-wash only with warm water and mild soap, dry immediately; not dishwasher safe. |
| Retailer-listed shipping weight | 0.833 lb (378 g). |
Full research notes and sources
Sources
- Mercer Culinary — Genesis Short Bolster Chef’s Knife 8 in product page
- Mercer Culinary — Limited warranty page
- KnifeMerchant — Genesis 9 in short bolster specifications
- ChefsToys — Genesis M21078 8 in chef’s knife listing
- r/chefknives — Maintaining the edge on Mercer Genesis knives
- r/chefknives — Mercer Genesis 9-inch chef ownership thread
- r/chefknives — Do you recommend Mercer Genesis thread
- Kitchen Knife Forums — Sharpening tips for Mercers thread
- r/Cooking — Favorite knives thread
- Wasserstrom — Genesis M21078 short bolster knife listing
