said by alkizmo:
However for the same of debate, I don't think there is a concentration level. It seems to be a very generic product.
Citric acid (sour salt) appears to have a specific molecular formula so unless you are buying a diluted product it should all have the same concentration.
»www.sciencecompany.com/C ··· 405.aspx
»en.wikipedia.org/wiki/Ci ··· ric_acid