A+ is sugar cane molasses, that is the thick syrup that remains in sugar cane preparation. It is a nutrient medium that activates EM. A+ sugar cane molasses is used together with EM-1 to create EM-A (activated EM) in an activator.
Directions: Mix 50ml EM1 + 50ml A+ (dissolve in 950ml lukewarm water). Leave this in an activator for 1 week. Some yeast flakes may form, these belong to EM. EM-A should smell fresh and sour. The pH should be around 3.8.
Packaging in 250 ml and 1-litre bottles