This is a commonly asked question for Beardbrand. Fun fact: facial hair is actually flat, compared to the hair on your head that is cylindrical. For this reason, beards tend to curl, even if you have straight head hair. So how do you combat this?
The secret is in the tools. You're going to need a jar of Beard Balm or a bottle of Beard Oil to soften your hair and make it easier to manage. Next up, grab you a quality beard comb, and a hairdryer.
Lastly, check out these two techniques Carlos and Eric use to remove their curls.