You may have been hesitant to buy seasonal produce for fear of nitrates or pesticides. Perhaps you have read on social networks or watched news about their danger on television. In "31 minutes" we bring you the answers to the dilemmas you have. We went to the market and talked to buyers, sellers, farmers in the field, talked to experts and authorities. Follow us to understand more how true the widespread alarm is and where the "Achilles' heel" lies in ensuring food safety.