Fill the sink with soapy water and let the bottle soak for 10-15 minutes. Most of the labels should peel right off. If you have any trouble you can use a scraper to get any of the residue left off. If there is a sticky residue left on the bottle after removing the label that is really stubborn, spread coconut oil over the residue and let it sit for 10 minutes. Use a scraper to remove the rest of the residue, then wash the bottle.