diff -r 82c3bb9a40c2 -r 454851b335ad www/js/rec_edit.js
--- a/www/js/rec_edit.js	Mon Mar 04 14:20:48 2019 +0100
+++ b/www/js/rec_edit.js	Mon Mar 04 15:33:34 2019 +0100
@@ -1325,13 +1325,17 @@
 			calcIBUs();
 		});
 		$('#efficiency').on('change', function (event) {
-			console.log("efficiency change:"+event.args.value);
+			var estog = parseFloat($("#est_og").jqxNumberInput('decimal'));
+			dataRecord.efficiency = parseFloat(event.args.value);
+			console.log("efficiency change:"+dataRecord.efficiency);
+			calcFermentablesFromOG(estog);     // Keep the OG
 			calcFermentables();
 			calcIBUs();
 		});
 		$('#est_og').on('change', function (event) {
-			console.log("est_og change:"+event.args.value);
-			calcFermentablesFromOG(event.args.value);       // Adjust fermentables amounts
+			dataRecord.est_og = parseFloat(event.args.value);
+			console.log("est_og change:"+dataRecord.est_og);
+			calcFermentablesFromOG(dataRecord.est_og);      // Adjust fermentables amounts
 			calcFermentables();                             // Update the recipe details
 			calcIBUs();                                     // and the IBU's.
 		});