Congrats on your upcoming wedding! For your hard fudge, it's a good idea to sterilize the jars before using them. Even though fudge is dense and has a lot of sugar, which helps preserve it, starting with clean, sterilized jars ensures the best quality and shelf life for your favours. To sterilize the jars, wash them thoroughly and then place them in a
preheated oven at 225°F (110°C) for about 10 minutes, making sure they’re completely dry before filling them. If your lids are metal, you can sterilize them too, but be careful with plastic lids as they might warp in the oven. Good luck with your fudge-making and enjoy the wedding!