Green onions are a flavorful and nutritious addition to many meals, but they can also carry harmful bacteria such as **Salmonella** or **E. coli** if they are not handled properly. Because they grow in soil and may come into contact with contaminated water, animal waste, or dirty equipment, bacteria can remain hidden between their layers, making simple rinsing less effective than many people realize.
Since green onions are often eaten raw, the risk of foodborne illness is higher than with vegetables that are thoroughly cooked. Even small amounts of contamination can lead to nausea, stomach cramps, or more serious illness, particularly for young children, older adults, pregnant women, and people with weakened immune systems. However, there is no need to avoid green onions altogether—proper food safety practices greatly reduce the risk.
Before using them, remove any damaged outer leaves and trim off the roots. Wash the onions in a bowl of cold water while gently rubbing each stalk, paying extra attention to the white base where dirt and bacteria are most likely to collect. Keeping your kitchen clean is equally important. Wash your hands before and after handling produce, and never use the same cutting board or utensils for raw meat and vegetables without thoroughly cleaning them first.
Proper storage also helps keep green onions safe. Refrigerate them promptly and check for signs of spoilage, such as slimy texture, discoloration, or an unpleasant odor. If they show any of these signs, throw them away.
With careful washing, safe food handling, and proper storage, green onions remain a healthy, nutrient-rich ingredient that can be enjoyed without unnecessary concern.