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Quote from: theDarkSide on July 03, 2012, 11:02:30 amWill galvanized carriage bolts be ok?Yep, zinc is actually a yeast nutrient, so having that in the boil would be a good thing!
Will galvanized carriage bolts be ok?
Quote from: jmcamerlengo on July 03, 2012, 11:10:05 amQuote from: theDarkSide on July 03, 2012, 11:02:30 amWill galvanized carriage bolts be ok?Yep, zinc is actually a yeast nutrient, so having that in the boil would be a good thing!I dunno....for one thing, there's seldom a need for additional zinc. For another, I'm pretty certain I heard galvanized in the kettle could be poisonous. I'll see if I can confirm that.ETA: According to the FDA, (http://www.fda.gov/food/foodsafety/retailfoodprotection/foodcode/foodcode2009/ucm188064.htm)4-101.15 Galvanized Metal, Use Limitation.Galvanized metal may not be used for utensils or food-contact surfaces of equipment that are used in contact with acidic food. Apparently the issue is that the low pH will dissolve the zinc and lead to zinc poisoning.
Quote from: theDarkSide on July 03, 2012, 11:02:30 amWill galvanized carriage bolts be ok?Galvanized and food are generally a no-no
I used one once and noticed that too - decrease in hop utilization. Of course disclaimer here my brewing partner made it and had three aluminum legs that went down into the kettle. It was more like a hop crab. We never really got the boil where we wanted it and our FG suffered a lot 1.036!
Why not just buy 3 of these 5" stainless eye bolts for spider legs?http://www.lowes.com/ProductDisplay?partNumber=221490-1277-V2161&langId=-1&storeId=10151&productId=3167909&catalogId=10051&cmRelshp=req&rel=nofollow&cId=PDIO1
Quote from: FirstStateBrewer on July 06, 2012, 08:17:39 amWhy not just buy 3 of these 5" stainless eye bolts for spider legs?http://www.lowes.com/ProductDisplay?partNumber=221490-1277-V2161&langId=-1&storeId=10151&productId=3167909&catalogId=10051&cmRelshp=req&rel=nofollow&cId=PDIO1They would need to be longer than 5 inches (they do offer 8"), but that would work -- at least one of the designs use these. I may do that at lunch today (and return the carriage bolts).