Hi All.. I made a Pilsner from a Kit and she 10.th day of fermantation. When the installation, I didn't have a Hidrometer to learn OG. But I have ingredients. Is there any calculation system or calculator to learn it. I use these are the ingredients : 1 Pilsner Kit which is 1.8 lt. 1 Kg Sugar 22 lt total liquid (I add about 20 liters of water) Many thanks..