I always add 1/8 of a t/s , you will find many of us doWortgames said:Probably none?! Never heard of it myself. I couldn't imagine what purpose it would serve, sodium met is a preservative.
Are you sure you're not thinking of gypsum or other minerals added to lower pH?
And it preserves by its antioxidative action, like a lot of preservatives do.Wortgames said:Probably none?! Never heard of it myself. I couldn't imagine what purpose it would serve, sodium met is a preservative.
KaiKai said:And it preserves by its antioxidative action, like a lot of preservatives do.
neonmeate said:it's also good for dechlorinating the water.
I believe sodium met. does remove chloramine (which can't be removed by boiling). Although chloramine is not common at least around Melbourne, it is used:jgriffin said:I don't believe that is actually correct. I can't remember the exact details, but basically there are two main ways to chlorinate the tap water. Sodium met works on one, but not the other. The one it works on is not used anywhere in Australia.neonmeate said:it's also good for dechlorinating the water.
Honestly, I don't know. I do not think much would make it through the boil thanks to the combination of the boil and the makeup of the wort. But, it seems the general theory is it does the job in the mash by preventing the precursors of noticeable oxidation forming... as you're probably aware. From everything I've learned in food chem and other subjects, this is quite possible as oxidation products do continue to react and multiply, so even if it's gone in the final beer it may still be playing a role as a preservative.Gulf Brewery said:Kai
How much of the sodium met do you think will make it through to the fermented beer in a form that could act as a preservative?
The only advice I have here is that if you think it's chlorine being released like that, don't stick your nose over it to check.neonmeate said:when i throw them in the water it fizzes and hisses, i always assumed that was chlorine getting released?
my chemistry isnt the best so i hope you guys can straighten things out for me.