The next evening I noticed the water had become quite yellow. I changed the water. It's now the following afternoon and the water is clear still. I am a tofu newbie so I dunno what's normal? The expiration date is in November. I know now that it's open it will only last a few more days but I'm afraid somehow it's managed to go bad (although there's no smell, and the texture is normal. )
thoughts? Google isn't helping.