Lettuce Knives
You've seen them on TV and in kitchen stores: serrated plastic knives that supposedly help prevent your lettuce from turning brown after cutting. But do they work better than tearing or using an ordinary kitchen knife? We chopped a head of romaine lettuce and a head of iceberg lettuce using three different knives: one with a stainless steel blade, one with a super-thin high-carbon steel blade, and the Zyliss Fresh Cut Salad Knife. We also tore the leaves by hand. After chopping and tearing, we refrigerated the lettuces in plastic zipper-lock bags and waited fo them to brown. Though all lettuce began showing some browning on the ribs after 10 days, none showed any signs of browning on the cut or torn surfaces. After 12 days, the heads cut with metal knives showed faint signs of browning on these surfaces, and the lettuce cut with the plastic knife followed a day later. The torn lettuce was last to brown on its ruptured edges, starting to turn at 2 weeks.
Our verdict? The plastic lettuce knife might stave off browning slightly longer than metal knives, but it's not worth the money or the extra drawer space. To prolong the life of lettuce by a day or two, stick to tearing by hand. Tearing allows leaves to break along their natural fault lines, rupturing fewer cells and reducing premature browning.
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EQUIPMENT
Chef's Knives -
EQUIPMENT
Inexpensive Knife Sets
- Good:
- ★★★
- Fair:
- ★★
- Poor:
- ★
- N/A:
- ----
| Product Tested | Performance | Comfort | Price* | |
|---|---|---|---|---|
| Highly Recommended | ||||
 |
Victorinox (formerly Victorinox Forschner) 6-inch Straight Boning Knife: FlexibleThe nonslip grip and narrow, straight blade let testers remove the smallest bones with precision and complete comfort. Perfectly balanced with enough flexibility to maneuver around tight joints. The low price was a bonus. |
★★★ | ★★★ | $19.95 |
| Recommended | ||||
 |
Wüsthof Classic Boning KnifeHefty in weight, this knife was a solid performer when removing poultry bones, and the handle was easy to grip, even when covered in chicken fat. Piercing silver skin was a challenge since the tip wasn’t sharp enough and the long narrow blade produced slightly jagged cuts. |
★★ | ★★★ | $99.95 |
| Recommended with Reservations | ||||
 |
Mundial Boning Knife: FlexibleThe sharp tip performed well when removing silver skin, but it was too flexible when maneuvering around poultry joints, leaving testers feeling a lack of control. The heavy handle was slightly unbalanced and became slippery once covered in poultry fat. |
★★ | ★★ | $19.95 |
| Not Recommended | ||||
 |
Shun Gokujo Filet KnifeDesigned to replicate a samurai blade, this expensive knife was a disappointment. It struggled to pierce the silver skin, although long cuts were smooth and even. Minimal flexibility and extreme curve got in the way when maneuvering around joints. The smooth handle was hard to grip and slippery. |
★★ | ★ | $179.95 |
 |
MAC Boning Knife—Chef SeriesThe large, cumbersome handle reminded testers of an outdoors knife for fishing and hunting. The blade was too wide to maneuver around joints and it struggled to pierce silver skin. Unlike other knives, this boning knife could only slice in one direction, making intricate cuts around joints difficult. |
★ | ★★ | $34.95 |
 |
Messermeister San Moritz Elite Flexible Boning KnifeThe blade was so flexible it led to erratic cuttings; testers said the knife was hard to control. The blade was not sturdy enough to maneuver around joints and the lightweight handle felt flimsy and unbalanced. |
★ | ★ | $53.60 |
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