diff -r 61436d428454 -r b72478cd2c18 www/js/global.js
--- a/www/js/global.js	Sun Jul 14 15:25:23 2019 +0200
+++ b/www/js/global.js	Sun Jul 14 17:08:54 2019 +0200
@@ -980,7 +980,7 @@
 
 function sg_to_plato(sg){return ((135.997*sg-630.272)*sg+1111.14)*sg-616.868;}
 function plato_to_sg(plato){return 1+(plato/(258.6-((plato/258.2)*227.1)));}
-function brix_to_sg(brix){return plato_to_sg(brix/my_brix_correction);}
+function brix_to_sg(brix){if(my_brix_correction>0)return plato_to_sg(brix/my_brix_correction);else return plato_to_sg(brix);}
 function sg_to_brix(sg){return sg_to_plato(sg)*my_brix_correction;}