One more question so i made liquid culture last night with distilled water , karo syrup, and malt extract. Is the yellowing because i added the malt extract or because i pressure cooked it for 45 mibs... View MoreOne more question so i made liquid culture last night with distilled water , karo syrup, and malt extract. Is the yellowing because i added the malt extract or because i pressure cooked it for 45 mibs at 15 psi? Thanks in advanced!