Scrub Daddy wins the endurance test — 8 weeks without smelling like a science experiment

I track sponge lifespans because apparently that’s the kind of person I am now. The Scrub Daddy consistently outlasts the Scotch-Brite by a wide margin — up to eight weeks before it starts to smell or lose its structure. The Scotch-Brite’s abrasive layer starts flaking off after a couple of weeks of daily use, and the sponge itself develops that sour odor faster, probably because its denser construction traps moisture longer. The Scrub Daddy’s open-cell foam dries out much faster between uses, which is the main reason it stays fresh. If you’re the type who replaces sponges at the first whiff of trouble, the Scrub Daddy will save you trips to the sink.