diff -r d369948a3eb5 -r 448e4187cada src/EditProductTab3.cpp
--- a/src/EditProductTab3.cpp	Fri May 20 14:48:03 2022 +0200
+++ b/src/EditProductTab3.cpp	Fri May 20 20:43:33 2022 +0200
@@ -395,6 +395,7 @@
      */
     double svg = 0;
     double initcells = 0;
+    product->yeasts_ok = true;
     if (product->yeasts.size() > 0) {
         for (i = 0; i < product->yeasts.size(); i++) {
 	    if (product->yeasts.at(i).y_use == 0) {		// Used in primary
@@ -406,7 +407,6 @@
 	    else
 		initcells += (product->yeasts.at(i).y_cells / 1000000) * product->yeasts.at(i).y_amount * (product->starter_viability / 100);
 	    // TODO: brett or others in secondary.
-	    product->yeasts_ok = true;
 	    if ((((product->inventory_reduced <= PROD_STAGE_PRIMARY)   && (product->yeasts.at(i).y_use == 0)) ||  // Primary
         	 ((product->inventory_reduced <= PROD_STAGE_SECONDARY) && (product->yeasts.at(i).y_use == 1)) ||  // Secondary
         	 ((product->inventory_reduced <= PROD_STAGE_TERTIARY)  && (product->yeasts.at(i).y_use == 2)) ||  // Tertiary