Kitchen Tools: When to Save, When to Splurge

Plastic ones may seem more practical (and safer, if you're baking with children). But copper or tin shapes are sharper and more effective, especially if you're making a large quantity. Plastic cutters can also warp if stored improperly (e.g., in a cabinet above the stove, where they're susceptible to high heat). For very large cookies where even slightly distorted shapes will be obvious, splurge on copper; it's sturdy and won't bend.