Of the economical grocery shopping options in Heidelberg, this is the one with the largest…read moreselection. It is packed with all sorts of different items and for me is more reminiscent of what I'm used to in a grocery store (from the USA). Some of the other lower cost grocery stores have rotating items so you might not find some things in stock but you will probably find most everything you are looking for here.
Do make sure to weight and print out a UPC code for your fruits and vegetables before going to the cash register (which I actually have not done at any other grocery store in Heidelberg yet).