diff -r 7f5455806f20 -r 1de1623e1760 www/js/prod_edit.js
--- a/www/js/prod_edit.js	Sun May 26 16:09:50 2019 +0200
+++ b/www/js/prod_edit.js	Sun May 26 20:37:28 2019 +0200
@@ -148,6 +148,7 @@
 		var mashtemp = 0;	// Average mash temperature
 		var bv = 0.925; 	// Bierverlies rendement
                 var sr = 0.95;  	// Mash en spoel rendement
+		var lintner = 0;	// Total recipe lintner
 
 		if ((rows = $('#mashGrid').jqxGrid('getrows'))) {
 			for (var i = 0; i < rows.length; i++) {
@@ -203,7 +204,15 @@
 		    	     ((dataRecord.inventory_reduced <= 6) && (row.f_added == 4))) && row.f_inventory < row.f_amount) {
 				ok_fermentables = 0;
 			}
+			if (row.f_added == 0 && (row.f_type == 0 || row.f_type == 4) && row.f_color < 50) { // Mash and Grain/Adjunct and Color < 50
+				lintner += row.f_diastatic_power * row.f_amount;
+	//			console.log("add "+row.f_name+" diastatic_power:"+row.f_diastatic_power*row.f_amount+" now:"+lintner);
+	//		} else {
+	//			console.log("ign "+row.f_name+" diastatic_power:"+row.f_diastatic_power*row.f_amount+" now:"+lintner);
+			}
 		}
+		$("#ferm_lintner").val(Math.round(parseFloat(lintner / mashkg)));
+	//	console.log("lintner:"+lintner+" kg:"+mashkg);
 		$("#mash_kg").val(mashkg);
 		console.log("calcFermentables() supplies:"+ok_fermentables);
 		to_100 = my_100;
@@ -3191,7 +3200,7 @@
                 var fermentableAdapter = new $.jqx.dataAdapter(fermentableSource);
                 $("#fermentableGrid").jqxGrid({
                         width: 1240,
-                        height: 500,
+                        height: 470,
                         source: fermentableAdapter,
                         theme: theme,
                         selectionmode: 'singlerow',
@@ -4311,6 +4320,8 @@
 	$("#est_og2").jqxNumberInput( Show3dec );
 	$("#mash_kg").jqxTooltip({ content: 'Het gewicht van alle mouten in de maisch.' });
 	$("#mash_kg").jqxNumberInput( Show3dec );
+	$("#ferm_lintner").jqxTooltip({ content: 'De enzymkracht van alle mouten in de maisch. Moet hoger dan 35 zijn.' });
+	$("#ferm_lintner").jqxNumberInput( Show0dec );
 	$("#perc_malts").jqxProgressBar({
 		width: 300,
 		height: 23,