diff -r d5fad7d80899 -r dfc850e6ee1f www/includes/db_product.php
--- a/www/includes/db_product.php	Sun Dec 08 11:27:19 2019 +0100
+++ b/www/includes/db_product.php	Tue Dec 10 20:11:37 2019 +0100
@@ -965,7 +965,22 @@
                                                         $yeasts[$i]['y_pofpos'] = intval($obj->pofpos);
 						if (! isset($yeasts[$i]['y_zymocide']))
                                                         $yeasts[$i]['y_zymocide'] = intval($obj->zymocide);
-					}
+					} else {
+                                                if (! isset($yeasts[$i]['y_sta1']))
+                                                        $yeasts[$i]['y_sta1'] = 0;
+                                                if (! isset($yeasts[$i]['y_bacteria']))
+                                                        $yeasts[$i]['y_bacteria'] = 0;
+                                                if (! isset($yeasts[$i]['y_harvest_top']))
+                                                        $yeasts[$i]['y_harvest_top'] = 0;
+                                                if (! isset($yeasts[$i]['y_harvest_time']))
+                                                        $yeasts[$i]['y_harvest_time'] = 0;
+                                                if (! isset($yeasts[$i]['y_pitch_temperature']))
+                                                        $yeasts[$i]['y_pitch_temperature'] = 0;
+                                                if (! isset($yeasts[$i]['y_pofpos']))
+                                                        $yeasts[$i]['y_pofpos'] = 0;
+                                                if (! isset($yeasts[$i]['y_zymocide']))
+                                                        $yeasts[$i]['y_zymocide'] = 0;
+                                        }
 					mysqli_free_result($result2);
 				}
 			}