Yeah, my mom taught me to clean my stove & oven parts with lye, too. I used to have an old O'Keefe & Merritt stove that was fairly easy to dismantle and I'd soak the parts in a mild lye solution to get any and all burned on food spills super easy.But I mean, if you splash it on the sink you just need to run the water and away it goes.
My mother used to use lye to deep clean the stove top, so splashes there mean a super clean stove! (Jk!)