Stewart Freeze-Dried Bacon PuffPops, Bacon, Egg & Cheese Recipe. An irresistible treat your dog will love that is made with real bacon, egg, and cheese. The freeze-drying process locks in the nutrients and benefits of raw food. Contains no additives and no preservatives. Free from corn, soy, wheat, grains, gluten, legumes, and lentils. Crafted with no added artificial preservatives or coloring to ensure a safe and healthy treat for your dog. High in protein with well-balanced amino acids for strong muscles.