There is no definitive answer to this question as the potency of bay leaves will vary depending on the time of harvest, how they are dried, and other factors. However, many people believe that fresh bay leaves are more potent than dried bay leaves. This is because the essential oils in fresh bay leaves are more concentrated than those in dried bay leaves. If you are using bay leaves for culinary purposes, it is generally recommended that you use fresh bay leaves whenever possible. If you only have access to dried bay leaves, however, it is still possible to get the desired flavor profile by using a larger quantity.