De or het gries?

The correct Dutch article is:

het gries

Meaning (Dutch) 1. gruis, zand 2. (voeding) griesmeel

How to use gries

the grieshet gries
this griesdit gries
that griesdat gries
our griesons gries
your griesjouw gries
every grieselk gries
which gries?welk gries?
a big gries / the big grieseen groot gries, het grote gries

Dutch words ending in gries

tarwegries

In compound words, the last part decides the article. See the rule

Dutch words starting with gries

griesmeel | griesmeelpudding | griessuiker

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).