Any differences between plastic buckets

I found alot of 6gallon plastic containers for cheap and was wondering if anyone knows the if there is a difference between the normal fermenting bucket and different shaped bucket if it would make a difference

 

Looks like what the folks who do no chill brewing use, or something like it.

What's the recycling code on the bottom?

 

dont know i havent pursched them yet but they only was $5 for each one.

 

They really should be <1> or <2> to use them. One of the brand names folks use are aquatainers.

The biggest issue with things that are opaque like that, and have lots of nooks and crannies is cleanliness and sanitization, after the first use, you really need to make sure there is no biomatter, such as trub left in those odd spaces.

A good hot soak with oxyclean will knock most of the stuff loose, and then a couple thorough rinsings.

You may want to get a dental mirror and a bendy flashlight to do visual inspections afterword, to make sure there is no biomatter left in that.

They are fine to use, but honestly I prefer something I can visual inspect, like a standard bucket or a clear carboy.

 

FYI.. you can get a 7 gallon bucket that's FDA approved for temps up to 190F for ~$9 at www.usplastics.com