diff -r 722a4eed545d -r bb6c06910f0f src/EditProduct.cpp
--- a/src/EditProduct.cpp	Mon May 02 22:42:19 2022 +0200
+++ b/src/EditProduct.cpp	Tue May 03 20:05:04 2022 +0200
@@ -1092,6 +1092,23 @@
 }
 
 
+void EditProduct::calcSupplies()
+{
+    if (product->inventory_reduced > PROD_STAGE_PACKAGE) {
+	ui->ok_pmptLabel->setVisible(false);
+	ui->ok_pmptIcon->setVisible(false);
+	return;
+    }
+
+    qDebug() << "calcSupplies() f:" << product->fermentables_ok /*<< "h:" << product->hops_ok << "m:" << product->miscs_ok << "y:" << product->yeasts_ok << "w:" << product->waters_ok*/;
+    if (product->fermentables_ok /*&& product->hops_ok && product->miscs_ok && product->yeasts_ok && product->waters_ok */) {
+	ui->ok_pmptIcon->setPixmap(QPixmap(QString::fromUtf8(":/icons/silk/tick.png")));
+    } else {
+	ui->ok_pmptIcon->setPixmap(QPixmap(QString::fromUtf8(":/icons/silk/error.png")));
+    }
+}
+
+
 void EditProduct::refreshAll()
 {
     refreshFermentables();