>There is no coding on any plastic bucket I have ever seen that tells me anything at all about how food safe that bucket is.
The food-safe designation comes from the manufacturer's sterilization process when the bucket is made, not the type of resin used. Lots of plastic types can be food-grade, but what should be noted is that when any bucket from any manufacturer is filled, it is no longer food-safe unless it's re-sterilized in an approved process. Also rinsing a bucket before filling negates its food-grade designation - it must be filled directly from the packaging. If you want to know if a bucket is food safe when new, contact the manufacturer for their certificate. There is a un rating on the bottom of most buckets which can be confused with a food-grade certification, but that's a strength rating.
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