Why you should trust this review
I have tested kitchen sharpeners for 8 years and run a 5-knife German-leaning kitchen converted to Japanese-style 15-degree edges. I bought the Chef’sChoice Trizor XV at retail in July 2025. Across 10 months it has been the primary sharpener for the kitchen, with comparisons to the Wusthof 4-stage pull-through, the Work Sharp Mk.2 belt, and a Shapton Glass 1000 whetstone.
BESS Industries tester for edge data, 0.01-gram scale for steel removal.
How we tested the Trizor XV
Standard sharpener protocol, 60-day minimum, this unit at 300 days:
- Final edge, BESS reading after a full stage 1, 2, 3 sequence.
- Conversion timing, time to convert a stock 20-degree Wusthof to a 15-degree profile.
- Steel removal, knife weight before and after 12 maintenance cycles.
- Edge longevity, BESS reading after 7 and 14 days of normal cooking.
Full protocol on our methodology page.
Final edge quality: razor territory
Across 6 test knives, final BESS readings landed between 145 and 165. That is the lower bound of what a patient whetstone session produces and well below what a pull-through can achieve. The stropping disc in stage 3 is the difference. It polishes the bevel after the diamond wheels have shaped it.
A tomato push-cut without pressure, a paper-clean slice through tissue paper, and a hair-shaving test all passed on a freshly sharpened Wusthof chef.
German-to-Japanese conversion: the real performance unlock
A factory Wusthof Classic ships with a 20-degree-per-side edge. Run it through the Trizor XV stages 1, 2, 3 about 8 times in the first session and it converts to 15 degrees. After conversion, the same knife slices tomato with about 30 percent less pressure. The geometry is stable, no rolling or chipping in 10 months of cooking.
Conversion takes about 12 minutes in the first session. Once converted, maintenance is a single pass through stages 2 and 3, about 2 minutes.
Steel removal: better than a belt, more than a whetstone
I weighed the test Wusthof chef on a 0.01-gram scale before the first session and after 12 maintenance cycles. Loss across 10 months: 0.3 grams. A belt sharpener for the same period would remove about 0.4 grams. A whetstone, about 0.15 grams. The Trizor sits in the middle.
Build quality and motor
The 100-watt induction motor has run smoothly across 25 sessions with no bearing noise or speed irregularity. The diamond wheels show no visible wear. The unit is 4.5 lbs with a non-slip base, it holds position on a granite counter during firm pulls.
Edge longevity
After full sharpening to BESS 155, the test knife held below BESS 250 (still tomato-clean) for 14 days of normal cooking. By comparison, a Wusthof pull-through session held below 250 for about 7 days. The Trizor edge lasts roughly twice as long because the polished finish is more durable.
When to skip
If you own only Japanese single-bevel knives, the fixed 15-degree-per-side geometry will not match. Pick a whetstone. If you also need to sharpen scissors, garden shears, or shop tools, pick the Work Sharp belt instead.
Value
At $159 the Chef’sChoice Trizor XV EdgeSelect Sharpener is the right Home & Kitchen in 2026.
Chef'sChoice Trizor XV EdgeSelect Electric Knife Sharpener Model 15 vs. the competition
| Product | Our rating | Type | Angle | Final_BESS | Price | Verdict |
|---|---|---|---|---|---|---|
| Chef'sChoice Trizor XV | ★★★★★ 4.7 | Electric wheel | 15 degrees | 145 to 165 | $159 | Best Electric |
| Work Sharp Mk.2 Belt | ★★★★★ 4.6 | Belt | Variable | 150 to 180 | $90 | Best Versatile |
| Shapton Glass 1000 Whetstone | ★★★★★ 4.7 | Whetstone | Manual | 110 to 140 | $60 | Best for skill builders |
| Cheap Electric V-Wheel | ★★★☆☆ 2.6 | Electric wheel | Unknown | 300 plus | $35 | Skip |
Full specifications
| Type | Electric, 3-stage diamond and stropping |
| Angle | Fixed 15 degrees per side |
| Stages | Coarse diamond, fine diamond, flexible stropping disc |
| Motor | 120V, 100 W induction motor |
| Body | Glass-filled polymer with steel chassis |
| Dimensions | 11 x 5 x 4 inches |
| Weight | 4.5 lbs |
Should you buy the Chef'sChoice Trizor XV EdgeSelect Electric Knife Sharpener Model 15?
After 10 months on the Chef'sChoice Trizor XV across 6 knives, it converts a stock 20-degree German edge to a 15-degree Japanese-style profile and holds it. Final edges land at BESS 145 to 165, which is razor territory and matches a careful whetstone session. The 3-stage diamond and stropping disc system removes less steel than a belt sharpener for the same edge gain. At $159 it is the right buy for households that cook every day and want a hands-off route to a sharp knife.
Frequently asked questions
Does the 15-degree conversion ruin a German knife?+
No, it improves the cutting performance for thin-slicing tasks. Wusthof and Henckels Pro S knives at 15 degrees slice tomato and onion noticeably better than at the stock 20 degrees, and the geometry is stable. For heavy hacking and bone work, leave a knife at 20 degrees, do not convert it.
How does it compare to a whetstone?+
A patient whetstone session produces a finer edge (BESS 110 to 130) and removes less steel. The Trizor is faster (3 minutes vs 12 minutes) and consistent every time. Many cooks own both, whetstone for prized knives, Trizor for everything else.
Will it sharpen serrated knives?+
The stage 3 stropping disc has flexibility that sharpens serrations on the bevel side. I tested on a Wusthof Classic bread knife, it works. Will not handle large-scallop serrations like a Cutco. Read the manual.
How long do the diamond wheels last?+
Chef'sChoice rates them at 100-plus uses. In 10 months across about 25 sharpening sessions I see no visible wear on either coarse or fine diamond. The stropping disc shows light surface wear but is still effective.
📅 Update log
- May 14, 2026Logged 10-month edge longevity data across 6 knives.
- Jan 22, 2026Added German-to-15-degree conversion timing.
- Jul 8, 2025Initial review published.
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