diff -r 72ba4a5e8ebc -r 077ada2dda9b www/js/prod_edit.js
--- a/www/js/prod_edit.js	Fri Jun 14 17:08:05 2019 +0200
+++ b/www/js/prod_edit.js	Fri Jun 14 20:19:04 2019 +0200
@@ -2000,10 +2000,11 @@
 			$("#brew_fermenter_extrawater").jqxNumberInput({ spinButtons: false, readOnly: true, width: 90 });
 			$("#brew_aeration_speed").jqxNumberInput({ spinButtons: false, readOnly: true, width: 90 });
 		}
-		if (dataRecord.stage < 5) { // At least secondary
-			$('#jqxTabs').jqxTabs('disableAt', 10);	// Packaging tab
-		} else {
-			$('#jqxTabs').jqxTabs('enableAt', 10);
+		if (dataRecord.stage == 5) // Lagering, allow packaging
+			$("#package_date").jqxDateTimeInput({ disabled: false });
+		else
+			$("#package_date").jqxDateTimeInput({ disabled: true });
+		if (dataRecord.stage >= 5) { // At least secondary
 			$("#primary_start_temp").jqxNumberInput({ spinButtons: false, readOnly: true, width: 90 });
 			$("#primary_max_temp").jqxNumberInput({ spinButtons: false, readOnly: true, width: 90 });
 			$("#primary_end_temp").jqxNumberInput({ spinButtons: false, readOnly: true, width: 90 });