Okay, just started doing yeast starters and I noticed that I have two small red dots on the bottom side area of my flask. I santized with Star San each time and use a bottle brush (twisted to get the inner edges) to scrub the $hit out of it but I can't get them out. I noticed water kinda "sticks" around it so I think its raised somewhat on the inside.
Okay so my question is any risks of infection/off flavors.
Has anyone had this same thing? I've done only 2 starters and just got my 3rd going in it today.
Any other way to get rid of it?
Both my other two had decent fermentations since last weekend so, the yeast is alive and working.
Thanks in advance for any advice or suggestions.