Q&A: The Perils of Peanut Butter How clean does a jar for your sandwich spread need to be for recycling efforts? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: Ancient Burial Pits Reveal Sophisticated RitualsRocky Mountain spotted fever WARNING: Deadly outbreak could spread to USMinnesota Company Offers ‘Fur-ternity Leave’ for New Pet Owners'Very worrying' Endless summers to strike UK and USA due to global warming warn scientistsNew E.P.A. Rollback of Coal Pollution Regulations Takes a Major Step ForwardAncient Mayan civilisation 'was WIPED OUT by deforestation'