Some items should be bagged separately from everything else to ensure no cross-contamination or damage. For this reason, always place raw meat in a separate bag in order to avoid contaminating the rest of the products and keep it at a cool temperature.
Jennifer Galliardt, a customer service representative who works at HEB, a supermarket chain in the USA and Mexico, says this practice "reduces the risk of cross-contamination of bacteria to other items. It is especially important to make sure raw meat never comes in contact with fresh, unpackaged products like produce or bakery items".
Remember that just because raw meat is packaged in plastic, it does not impede potential contamination.
What the video below to learn how cross-contamination happens: