Wire Potato Grater Rustica. The delicious German potato pancakes go by lots of regional names, but there is only one proper utensil for their preparation: the Rustica wire potato grater ensures that the fine batter comes out perfect in no time at all. Ideal for preparing the batter for potato pancakes 1-mm-thin wire for fine potato batter L 11,6 cm, w 32,0 cm, h 0,5 cm High-grade stainless steel Dishwasher safe The delicious German potato pancakes go by lots of regional names, but there is only one proper utensil for their preparation: the Rustica wire potato grater ensures that the fine batter comes out perfect in no time at all.