Where is the cheapest place to buy bulk grains and beans?

[GMan_27]

Take the train to "Centro de Transbordo de Liniers." Three blocks from that station are a few interconnected blocks of bulk grain, spice, legume and all other sort of products for kitchen/home. Cheapest prices I have found for such goods.

While there, have lunch at "El Ferroviario." You won't regret it.

Is that Mercado Andino? Only place I can see on Gmaps.
Edit: Ok I see Eximbol there near Mercado Andino. Thank you.