Disclosed herein is preservation system for nutritional substances. The preservation system obtains information about the nutritional substance to be preserved, senses and measures the external environment to the preservation system, senses and measures the internal environment to the preservation system, senses and measures the state of the nutritional substance, and stores such information throughout the period of preservation. Using this accumulated information, the preservation system can measure, or estimate, changes in nutritional content (usually degradation) during the period of preservation. Additionally, the preservation system can use this information to dynamically modify the preservation system to minimize detrimental changes to the nutritional content of the nutritional substance, and in some cases actually improve the nutritional substance attributes.

A method for manufacturing solid gochujang according to a disclosed embodiment includes evaporating moisture from gochujang that has fluidity by containing moisture, and cooling the gochujang that has fluidity equal to or less than a predetermined threshold as the moisture is evaporated.

A method for manufacturing solid gochujang according to a disclosed embodiment includes evaporating moisture from gochujang that has fluidity by containing moisture, and cooling the gochujang that has fluidity equal to or less than a predetermined threshold as the moisture is evaporated.