The quality of Biostime milk powder has caused controversy. Biostime milk powder, as a leader in China\’s infant milk powder market, has been repeatedly questioned and tortured on product quality in recent years. From the initial \”melamine\” incident to this round of \”expired milk powder\” controversy, the quality issues of Biostime milk powder have always caused people\’s heated discussions and concerns. It is reported that this incident mainly focuses on three aspects: the issue of expired milk powder and the recent issue of Biostime milk powder.