Thought I would post a thread for anyone who might be questioning this.
Lowe's grey 5 gallon HDPE 2 buckets are NOT food grade. They are from the Econo-Blend line which are not food grade. See link below.
I found this out by searching the model number of the grey buckets sporting the Lowe's logo. I took a picture of the model number from my local Lowe's (but I don't think I'm allowed to post it because I'm a free member of the forum) showing the model number (Model 57640). See link below for description of model and that it belongs to Econo-Blend line. (Scroll to "Industrial Pales", then Model 57640)
Just wanted post this thread so that anyone (like me) will know for sure that these particular buckets are not food grade.