Buckwheat groats have grassy smell?
There is nothing wrong with them. The buckwheat is probably ok because on the on the official website called Anthony’s goods every single review is a five star( in fact one of the reviews called the grassy smell you talked about “natural”)one except one review which is four stars ( the four star review was because there was a rip in the package). Plus on the official store the buckwheat groats are sold out meaning people like them and want to buy them. Additionally all the other products on the store also are rated 5 stars. Here is a link to the official website (https://www.anthonysgoods.com/products/anthonys-usda-organic-raw-hulled-buckwheat-groats-grown-in-usa-5-pounds-5lb-certified-gluten-free?variant=1813269699)