diff -r bce87b8b604b -r da148d6b4c95 src/EditProductTab3.cpp
--- a/src/EditProductTab3.cpp	Sun May 01 11:38:53 2022 +0200
+++ b/src/EditProductTab3.cpp	Sun May 01 16:27:00 2022 +0200
@@ -235,7 +235,7 @@
 		mvol += product->fermentables.at(i).f_amount * product->fermentables.at(i).f_moisture / 100;
 		s += d;
 	    }
-	    d = ui->efficiencyEdit->value() / 100 * d;
+	    d = product->efficiency / 100 * d;
 	    sugarsm += d;
 	    product->mashs_kg += product->fermentables.at(i).f_amount;
 	}
@@ -275,7 +275,11 @@
     ui->est_og4Edit->setValue(og);
     ui->est_ogShow->setValue(og);
 
+    product->est_og3 = Utils::estimate_sg(sugarsf, product->batch_size);
+    ui->brew_aboilsgShow->setValue(product->est_og3);
+
     product->preboil_sg = Utils::estimate_sg(sugarsm, product->boil_size);
+    ui->brew_preboilsgShow->setValue(product->preboil_sg);
     qDebug() << "  preboil SG" << product->preboil_sg;
 
     /*