Warning!!! Could have gone wrong.

[scooner]

Before I made my brew today, I sterilized all my equipment.
Then for some stupid reason and no thought, I sterilized or so tried to sterilize my mash tun with a very strong dosage of Sodium Metabisulphite , Not a very smart move on my behalf, as it created unseeable gases which I couldnt smell
But could feel the effects.

It made me feel dizzy,short of breath and gave me a metallic taste in my mouth,
So I quickly opened all windows and doors and also dumped the solution.

Has anyone had this happen to them or know what the gas is?

 

[krackin]

It sounds like an allergic reaction.

 

[Frige]

Doesnt sound like something I would use. More for industry I would think with lots of ventilation.
http://www.livestrong.com/article/208572-dangers-of-sodium-metabisulfite/

 

[zachattack]

1) anything during or before the boil doesn't need to be sanitized (mash tun, HLT, kettle, etc.)

2) For everything else, I'd recommend Star San