diff --git a/shells/Fresh_corn_tortillas.md b/shells/Fresh_corn_tortillas.md
index dd2739f..e547bf2 100644
--- a/shells/Fresh_corn_tortillas.md
+++ b/shells/Fresh_corn_tortillas.md
@@ -3,8 +3,8 @@ Fresh Corn Tortillas
 
 This is the only way to go. So worth it. Makes roughly 15 tortillas.
 
-* 1 3/4 cups masa harina
-* 1 1/8 cups water
+* 230g (about 1 3/4 cups) masa harina
+* 230g (about 1 1/8 cups) water
 
 1. In a medium bowl, mix together masa harina and hot water until thoroughly combined. Turn dough onto a clean surface and knead until pliable and smooth. If dough is too sticky, add more masa harina; if it begins to dry out, sprinkle with water. Cover dough tightly with plastic wrap and allow to stand for 30 minutes.
 2. Preheat a cast iron skillet or griddle to medium-high.