Crystallization of 2′-FL

A method for crystallizing 2′-FL comprising:

• i) providing an aqueous solution or syrup comprising 2′-FL at a temperature of 35-60° C.,
• ii) while maintaining the temperature of the aqueous solution or syrup at 35-60° C., adding a 10-30 wt % suspension of crystalline 2′-FL in acetic acid to the aqueous solution or syrup comprising 2′-FL, thereby generating a slurry wherein the amount of acetic acid in the slurry, after addition of the suspension of crystalline 2′-FL in acetic acid is 1.5-4 wt %,
• iii) at a temperature of 35-60° C., adding acetic acid to the slurry until the ratio of acetic acid to water is 4-6 to form a diluted slurry,
• iv) obtaining a crystalline mass from the diluted slurry, and
• v) filtering the crystalline 2′-FL from the crystalline mass.