Is submerging bottles in boiling water (assuming they've been rinsed out) for a few minutes a good method of sterilization? I'm still planning on spraying some metabisulphite afterwards, and then some star-san just before bottling. I just want to know if I can substitute a bleach soak with boiling water water. This is because I find the bleach method takes forever, including having to remove the flip-top wiring from the bottle, and rinsing the bleach-solution residue from the bottle.