This question usually pops up in my head every time I step into Home Depot and see all the orange buckets around.
What makes a bucket food grade?
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related: homebrew.stackexchange.com/a/11015/3914 – djs Jan 18 '17 at 15:57
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It's the type of plastic, and how it's manufactured (it has to do with the chemical properties of the plastic). A food grade container will not allow most foods to leach toxic chemicals from it under normal operating conditions.
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broken link. is this the correct one? usaemergencysupply.com/information-center/… – djs Jan 18 '17 at 15:48
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Look for the recyclable marks on the buckets, usually on the bottom. There should be three arrows in the shape of a triangle with a number in the center. If the number is #1 or #2 then it is food grade. Usually #2 which is HDPE or high density polyethylene.
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It would appear that 1,2,4 and 5 are food grade according to: wikihow.com/Identify-Food-Grade-Buckets . Personally I usually looks for the Glass and Fork symbol. – Philippe Mar 29 '17 at 16:51
