Gratefood Co. sources fresh frozen spirulina from Thailand. It is grown from a mother culture and seeded into a bioreactor where clean filtered water and nutrients are added into it for its growth. The farm sits in a forest in Ratchaburi, with clean unpolluted air.
The spirulina is harvested after 10 days of inception when it has reached its optimum nutrient level, naturally containing minerals such as potassium and magnesium and has a noticeable amount of Vitamin A. Excess moisture is then removed to form a thick concentrated paste which is frozen with no additional heat or drying treatment. This ensures no further loss in nutrients from the seaweed.