Plasmids are extremely valuable as a source of DNA and for use in biotechnology. Our research goal was to develop plasmids with extremely high copy numbers for lab-scale plasmid preparations. Using the beverage method simplifies the process of obtaining a large quantity of plasmid DNA for various applications. Diet Coke as a beverage demonstrated that DNA recovery is highly adequate. Diet Sting with EcoRI and BamHI enzymes was used to detect restriction digestion with high sensitivity. However, for lab-scale preparative work, our findings show that plasmid yield can be significantly increased by using standard growth procedures and commonly used growth media.