I will probably get scolded for this, but, I have made several batches of wine in whatever plastic bucket I had on hand with no ill effect. However if you are going to buy a bucket make it a food grade one. I have made my last batch in a non food bucket, all future batches will be all food grade.
Homebrewing since before the turn of the century!
fruit punch wine
Traditional Mead,Bluestrawberry Mead, Wildberry Wine, Pumpkin Pie Mead, Peach wine