Dishwasher pods are favored for convenience and eco-friendliness, but improper use can cause residue buildup on dishes. Residue can be caused by water temperature, pod placement, hard water, or dishwasher loading issues. This residue may affect dish cleanliness and potentially gut health due to chemical exposure. Using pods correctly, selecting quality products, and maintaining the dishwasher can help prevent residue, ensuring sparkling and safe dishes with each wash.