The spiciness of Caribbean jerk seasoning can vary greatly depending on the number of peppers and hot spices used in the mixture. However, it is typically considered to be a medium-spicy dish. If you're looking for something milder, you can always adjust the ingredients so it isn't as spicy. If you want it spicier, you can always add more. Remember, you can always add spice and heat but it is hard to take it away.