Contents: 4 pouches each of PTM1 Salts Part A and PTM1 Salts Part B to make four liters of PTM1 Salts.
Directions: To make one liter of PTM1 Salts stock solution, add pouch contents of Part A and Part B to deionized water. Add 5 mL of H2SO4 (sulfuric acid), mix, and adjust final volume to one liter. Solution will be blue/green. Filter sterilize to remove particulates. Use 4.35 mL per liter of fermentation medium.