diff -r b316b88ebe12 -r f6fafccd8a6d www/js/prod_edit.js
--- a/www/js/prod_edit.js	Sat Mar 02 19:21:50 2019 +0100
+++ b/www/js/prod_edit.js	Sun Mar 03 13:26:28 2019 +0100
@@ -4449,6 +4449,9 @@
 			parseFloat(rowdata.h_alpha), $("#ibu_method").val()
 		);
 		rowdata.h_amount = amount;
+		var ibu = toIBU(rowdata.h_useat, rowdata.h_form, preboil_sg, parseFloat($("#batch_size").jqxNumberInput('decimal')),
+				parseFloat(rowdata.h_amount), parseFloat(rowdata.h_time), parseFloat(rowdata.h_alpha), $("#ibu_method").val());
+		$("#wh_ibu").val(ibu);
 		calcIBUs();
 	});
 	$("#wh_ibu").jqxNumberInput( Show1dec );