Don’t Use Vinegar
Be careful when using vinegar because it contains acids that break down grout over time, and vinegar is known to discolor grout. Pinterest has numerous home remedies with vinegar as a key ingredient but beware of the consequences. Use vinegar sparingly to clean grout. When used often the lifespan of your grout shortens. In other words, to extend the life of your grout don’t clean it with vinegar. No matter how tempting. For more tips check out http://www.groutworksnj.com and click on blog.