Star San - how long does it keep?
- Thread starter Bashley
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IainM
Landlord.
1. Any you want
2. Ages
3. Nope
I'd use Tesco Ashbeck water to dilute, as it has low pH to start with and low alkalinity. I make up 5L at a time then add it to a spray bottle and spray as needed. 5L diluted like that lasts me about a year without going cloudy.
2. Ages
3. Nope
I'd use Tesco Ashbeck water to dilute, as it has low pH to start with and low alkalinity. I make up 5L at a time then add it to a spray bottle and spray as needed. 5L diluted like that lasts me about a year without going cloudy.
IainM
Landlord.
Sort of. If it isn't cloudy then it's fine, and if it is cloudy then it may or may not be fine, depending on pH. Best to use something like Ashbeck water from Tesco, or Eden Falls from Asda, as these are low in carbonate/bicarbonate and the star san can lower the pH more than enough. If you live in a soft water area then your tap water should be good too.
IainM do you use untreated tap water for your star san? - I've always used low alkaline bottled water (under 7.0 ph) because of the fear of the chlorine/chloromine in the tap water causing the yeast in the beer to give off tcp type flavours. I know there may not be that much compared to doing a whole brew with untreated tap water, just wanted someones actual experience on this, cos I've not had to chuck a single brew and I wouldn't want to start now
volvic is 7.0, evian 7.2?
de-ionised car batter water?
try this link as a starting point?
http://www.mineral-calculator.com/the-mineral-calculator.html
IainM
Landlord.
IainM do you use untreated tap water for your star san? - I've always used low alkaline bottled water (under 7.0 ph) because of the fear of the chlorine/chloromine in the tap water causing the yeast in the beer to give off tcp type flavours. I know there may not be that much compared to doing a whole brew with untreated tap water, just wanted someones actual experience on this, cos I've not had to chuck a single brew and I wouldn't want to start now
No, I've always used low bicarbonate < pH 7 water from the shop.
IainM
Landlord.
Just go to the local supermarché, and look at the labels on big bottles of water. You are looking for a pH of 7 or below and/or low hydrogénocarbonate/bicarbonate, below 100 mg/L should do the trick.
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