Methods for making wettable, dispersible potato protein powders are provided. The wettable dispersible potato protein powders comprise potato protein, free amino acids, non-protein nitrogen compounds, and minerals from potatoes; and are low in total α-glycoalkaloids. The inventive potato protein powders are suitable for use in formulating foods, feeds and beverages.本發明提供用於製造可潤濕、可分散馬鈴薯蛋白粉之方法。該可潤濕可分散馬鈴薯蛋白粉包含來自馬鈴薯之馬鈴薯蛋白、游離胺基酸、非蛋白氮化合物及礦物質;且其總α-糖基生物鹼低。本發明馬鈴薯蛋白粉適用於調配食品、飼料及飲料。