Preheat the oven to 325 degrees Fahrenheit. Place each bacon-wrapped tube on a baking rack set on top of a baking sheet. When the oven comes to temperature, bake the bacon straws for about 20 minutes, until they are very brown and crispy.
Allow the bacon straws to cool completely, then carefully slide them off of the foil tubes (some will require gentle wiggling) and set aside until ready to use. Use the straws in Bloody Marys, Bloody Marias or any drink that could benefit from a little bacon.