Re: What is the pH of spices and herbs?

Spices and herbs comprise a huge family of naturally occurring compounds.  
Some of these are acidic, some are basic, and some are neutral.  Thus, there 
is no simple answer to your question.  The pH of a water solution of any of 
these will depend upon which particular spice or herb is being tested, and 
also on the concentration.  In other words, when an acid or a base is 
dissolved in water, the pH will depend not just on the acidity or basicity 
of the compound, but on its concentration.  

You can verify this yourself with vinegar.  Household vinegar is a solution 
of around 2% acetic acid, a naturally occurring acid.  If you have access to 
a way of testing acidity, such as pH paper or litmus paper, try it on some 
vinegar straight from the bottle.  Then, dilute the vinegar by half with tap 
water and test it again, and continue diluting the vinegar and testing it 
each time.  You will see that eventually you end up with a nearly neutral 
solution.