How to determine whether the dog food is spoiled

The common way to distinguish between expired or spoiled dog food are the following: 1, if the dog food appears damp and moldy, then the dog food must be spoiled. 2, pay attention to the shelf life date of the dog food label, this is the most common method, but also the most accurate method. 3, if the dog food becomes very fragile, this is a manifestation of the expiration date. As for judging whether the dog food is bad, first look at the color of the dog food is not shades, and then smell to see if it is the same as the taste at the beginning, and if it is good dog food, deterioration is very obvious, directly smelly and sour, or not sealed, there will be cockroaches, or very damp. Keep dry, avoid light and sunlight, every time you pour a grain to plastic seal preservation, and pour out the dog food do not more than a day as soon as possible to eat the better, and if it is a minor puppy, that dog food must be bubble before it eats, otherwise it is not easy to digest and hurt the stomach.