4-601.11 (B) and (C); Core; Bottom of tall reach-in unit has milk residue accumulation. Shelving in same unit has old sticker residue accumulation. Coffee residue present on shelving under drivethru sink and in bottom of second tall reach-in unit where cold brew is stored. Equipment nonfood-contact surfaces shall be kept free of an accumulation of dust, dirt, food residue and other debris. Clean inside of tall reach-in coolers and shelving.