1. Observation appearance: high-quality freeze-dried raw flesh and blood should have uniform color and no obvious color difference and stain. The surface should be smooth without any damage and cracks.
2. Smell: After opening the packaging bag, there should be a faint smell of meat. If the smell is unpleasant or pungent, please do not buy it.
3. Check the hardness: high-quality freeze-dried raw flesh and blood should be very hard, and there should be no elastic or soft feeling. If you can gently squeeze the mark with your fingers, it means it is not very fresh or stored improperly.
4. Look at the weight: because the moisture of freeze-dried raw meat has been removed, its weight should be lighter than that of fresh meat with the same weight. If it is found that the weight of a pack of freeze-dried raw meat is the same as that of fresh meat with the same weight, then other ingredients may be added to this freeze-dried raw meat.
In short, when buying freeze-dried raw meat, it is recommended to choose a well-known brand or a reputable seller, and choose according to the above methods.