Scrub Daddy vs other sponges: Scratch-free on nonstick only if you use the warm-water side

Scrub Daddy’s FlexTexture foam won’t scratch nonstick, ceramic, or enamel when softened in warm water — that’s the key difference. Use the firm cold-water side for stainless steel and cast iron, and the soft warm-water side for nonstick. The scratch-free claim holds up as long as you respect the temperature switch.