To store avulsed tooth, which kind of milk is shown to be suitable?
Milk has shown to maintain the vitality of periodontal ligament cells for 3 hours. 
Low fat milk is relatively bacteria-free with pH and osmolality compatible with vital cells.
Ref: Textbook of endodontics, Nisha Garg and Amit Garg, 3rd edition, pg no:476
Hot milk
Cold milk
Low fat milk
High fat milk