"Citric acid was first isolated in 1784 by the Swedish chemist Carl Wilhelm Scheele, who crystallized it from lemon juice."
"Citric acid exists in greater than trace amounts in a variety of fruits and vegetables, most notably citrus fruits. Lemons and limes have
particularly high concentrations of the acid; it can constitute as much as 8% of the dry weight of these fruits (about 47 g/L in the juices[4]). The
concentrations of citric acid in citrus fruits range from 0.005 mol/L for oranges and grapefruits to 0.30 mol/L in lemons and limes. Within species,
these values vary depending on the cultivar and the circumstances in which the fruit was grown." -wikipedia
The chemical makeup of lemon juice as per wikipedia also lists the vitamin and mineral amounts in 1 fl oz (~30ml) of lemon juice.
I have no idea if that works, but you can always try it.entropy51 - 26-3-2011 at 12:12
Hereabouts the grocery stores sell Sour Salt which is pure citric acid. Some things just aren't worth making, except maybe one time for the experience.smaerd - 26-3-2011 at 14:49
Or at brewing stores they usually sell 1-2 ounce bags for 2 dollars or so.
