Sweet Potato Jerky Chewy sweet potato slices £1.00 Quantity: at £1.00 each Add To Basket 1 in stock. Name: Sweet Potato Jerky Ingredients: fresh sweet potato Minimum net weight: 30g Store in a cool, dry place. Best consumed within 10 weeks of the baking date. It is normal for the treat to soften into a chew over time. This is a treat for your dog – it is not a substitute for a meal.