itry
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@mrhardware i am going to try this
I agree Mr H and as I said, I certainly don't wish to sow discord and alarm. However, take a look at for example Preventing Corrosion In The Brewery | MoreBeer
An astute observation ... yes the SS that we use in our brewing vessels should be passivated; and that is precisely why you don't want to damage the passivation (which is just a thin oxide layer on the surface) by cleaning with bleach or rubbing with a metal scourer - even a SS one.Interesting info. Looking at the table, there’s a major difference between Passivated and Unpassivated stainless steel.
Can we assume that all the stainless kit that we use (stock pots, valves, disconnects, nuts & bolts, etc. are made from passivated stainless steel?
Can we assume that all the stainless kit that we use (stock pots, valves, disconnects, nuts & bolts, etc. are made from passivated stainless steel?
Perhaps more than 4% if you are in a hard water area?No, I wouldn't assume that at all. Passivation is pretty easy to do though - clean all your stainless things that you want passivated - your pot/ss chiller/cam locks etc - fill pot with 80c water, add enough citric acid to get to about 4% concentration, so 40g/l of powdered citric acid, then leave it for a couple of hours. Drain, rinse and leave it all exposed to air for a day before using it.
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