To snowdog:
Salt isn't particularly hygroscopic, so hygroscopicity isn't really an issue
Sorry mate you need to do better research. Salt is quite hygroscopic which is why anti-caking agents are always included in retail salt to prevent it clumping together.
Since table salt also contains flow aids
and there you go contradicting your own argument!
To CurryCanuck:
Why would you freeze volume when fresh is better ( except for the end product of a base sauce )
Beacause we don't all have leisurely lives where we can take the time to prepare from fresh.
Control of volume ingredients is difficult at the best of times...far better to use " a workable quantity " and maintain quality .
On a domestic level, control of volume gets more accurate the larger the amount of recipe you produce, so your statement is 100% incorrect.
... bland and non-decrypt so be it . Perhaps we should stick litmus paper into the sauce to see what the acid-base complex is !!!???
Now who's turning it into a science fair? You've even introduced encryption into the argument!

PS - quotes from google searches perporting to be your own material now border on the tiresome . Cut and paste does not exemplify knowledge !
Who was cutting and pasting, it certainly wasn't me? At this 'childrens' level of science, I don't need to refer to anything other than my own knowledge.
YF