Adult Dry Dog Food Lamb & Rice 5 lb vs Mini Breed 8+ Dry Dog Food: which is safer?

Where these two actually differ

• We flag Mineral oil or ink migration from paper and Mold or bacterial growth from moisture ingress on the Purina Pro Plan and not on the Royal Canin.
• We flag Mold and mycotoxin contamination in stored kibble, Microplastics from bag degradation and Chemical residues from bag manufacturing (inks, adhesives) on the Royal Canin and not on the Purina Pro Plan.
• The Purina Pro Plan is paper/kraft outer bag with likely polyethylene inner lining (food contact) where the Royal Canin is Kraft paper or plastic laminate bag (typical dry pet food packaging), which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.