Grocery cart cross-contamination is a common occurrence at the supermarket. Why does this happen? How can we avoid it?
As you will decipher, cross-contamination can happen when the juices flowing from raw meat, fish or poultry mix with other foods, vessels or surfaces. They should never be kept open after you have bought them and handled properly as these foods are prone to contamination.
To prevent this from occurring, put all such items in plastic bags and only then place them in the cart. This will not let the juices drip on the other foods when you are driving back home.