Fresh-frozen and dried spirulina are different product formats. SPRU is grown in closed bioreactors, harvested, washed, portioned and blast-frozen at −18°C. Dried spirulina has been processed to remove moisture and is commonly sold as powder or tablets.
Choose the format that fits how you shop, store and use spirulina. SPRU must stay frozen and is used after defrosting; dried products are stored according to their own directions. We do not claim that one format delivers a specific health outcome over the other.