Which drying methods are considered superior for preserving delicate vitamins in oat grass powder?

Answer

Low-heat drying or freeze-drying

Low-heat drying or lyophilization (freeze-drying) are generally superior methods for preserving the delicate vitamin content compared to standard high-heat spray drying.

Which drying methods are considered superior for preserving delicate vitamins in oat grass powder?
foodplanthumanconsumptionoat grass