diff --git a/pineappl/src/lagrange_subgrid.rs b/pineappl/src/lagrange_subgrid.rs
index 8a311dd8..d5454ec8 100644
--- a/pineappl/src/lagrange_subgrid.rs
+++ b/pineappl/src/lagrange_subgrid.rs
@@ -108,22 +108,6 @@ impl Subgrid for LagrangeSubgridV2 {
         self.array = new_array;
     }
 
-    // fn indexed_iter(&self) -> SubgridIndexedIter {
-    //     let nodes: Vec<_> = self.interps.iter().map(Interp::node_values).collect();
-
-    //     Box::new(self.array.indexed_iter::<3>().map(move |(index, v)| {
-    //         (
-    //             (index[0], index[1], index[2]),
-    //             v * self
-    //                 .interps
-    //                 .iter()
-    //                 .enumerate()
-    //                 .map(|(i, interp)| interp.reweight(nodes[i][index[i]]))
-    //                 .product::<f64>(),
-    //         )
-    //     }))
-    // }
-
     fn indexed_iter(&self) -> SubgridIndexedIter {
         let nodes: Vec<_> = self.interps.iter().map(Interp::node_values).collect();
 
diff --git a/pineappl/src/packed_subgrid.rs b/pineappl/src/packed_subgrid.rs
index 05edaf74..c99654b4 100644
--- a/pineappl/src/packed_subgrid.rs
+++ b/pineappl/src/packed_subgrid.rs
@@ -29,7 +29,6 @@ impl Subgrid for PackedQ1X2SubgridV1 {
     }
 
     fn mu2_grid(&self) -> Cow<[Mu2]> {
-        // Cow::Borrowed(&self.mu2_grid)
         Cow::Owned(
             self.node_values[0]
                 .values()
@@ -233,16 +232,6 @@ mod tests {
         )
         .into();
 
-        // let mu2 = vec![Mu2 {
-        //     ren: 0.0,
-        //     fac: 0.0,
-        //     frg: -1.0,
-        // }];
-
-        // assert_eq!(grid1.mu2_grid().as_ref(), mu2);
-        // assert_eq!(grid1.x1_grid().as_ref(), x);
-        // assert_eq!(grid1.x2_grid(), grid1.x1_grid());
-
         assert_eq!(
             grid1.node_values(),
             vec![