--- a/src/global.h	Fri Apr 29 22:49:32 2022 +0200
+++ b/src/global.h	Fri Apr 29 23:09:51 2022 +0200
@@ -32,7 +32,7 @@
 #define SlakingHeat		10.318	//cal/g.°C
 #define equip_tun_weight	2.0	// 2 Kg pot
 #define equip_tun_specific_heat	0.110
-
+#define MaltVolume		0.87	// l/kg 0.688 volgens internetbronnen, gemeten 0.874 l/kg, na enige tijd maischen 0,715 l/kg (A3 Otten).
 
 struct Acid
 {