The best way to reheat garlic bread knots is to place them in a damp paper bag and reheat them in a 350-degree oven for 3 to 5 minutes. Here are the basic steps: Place the knots in a paper bag. Close the bag by crumpling it shut. Lightly run water over the outside of the paper bag to make it slightly damp, but only on the outside of the bag. Place the bag in an oven that is preheated to 350°F/177°C. Reheat the knots in the paper bag for 3 to 5 minutes. This paper bag reheating trick works for almost any bread or roll!