--- a/www/includes/db_product.php	Mon Feb 04 20:56:44 2019 +0100
+++ b/www/includes/db_product.php	Tue Feb 05 21:55:22 2019 +0100
@@ -71,6 +71,9 @@
 	$sql .= "', eq_efficiency='" . $_POST['eq_efficiency'];
 
 	if ($stage > 1) {
+		$sql .= "', brew_date_start='" . $_POST['brew_date_start'];
+	}
+	if ($stage > 0) {
 		syslog(LOG_NOTICE, "write brewdate data");
 		$sql .= "', brew_date_start='" . $_POST['brew_date_start'];
 		$sql .= "', brew_mash_ph='" . $_POST['brew_mash_ph'];