My grandmother was very poor. She lived off a tiny pension and her social security in Fort Wayne, Indiana. She used to shop at Aldi's up there. I went with her a time or two. The store was always filthy. Box trash and paper all over a floor that looked like it had never been swept a day in it's life. Most of the canned goods were scratch & dent cast offs. (Now that my husband is a health inspector, I question if it was even legal for them to sell those canned goods in that shape.) The place stunk to high heaven like musty, moldy food. Most bread or snack products (like donuts, Little Debbie type snacks) were always expired. I can't vouch for sour milk but it wouldn't have surprised me a single bit... My grandma died in 1996. However I went to a different Aldi's in a different town with my Mother-in-Law about 10 years ago. It was more or less the same experience. I don't even remember WHY we went in there because she is very particular about where she shops and that is definitely not her type of store.