I just got a stir plate and was excited to make my first 1L starter with it. I googled the appropriate DME to water ratio and the first two results I found listed 1L to 1lb DME which seemed high but given the two sources I went with it.
After making the starter and pitching my yeast I started thinking about it more and realized this ratio much be off. It turned out that the instructions for the first source only called for a cup but listed a pound in the supplies. The second source was a typo which was corrected further down in the thread.
I decided that increasing the size of the starter was the best solution. I had a 1 gallon jug on hand and decided that adding another liter of tap water would be a decent compromise between having way too large a starter and having one that was the right gravity.
Ultimately, it seems like I'm dealing with a half-gallon batch of moderate-to-high gravity beer rather than a true starter. I should end up with way more yeast cells but I'm also going to stress the yeast more than I would have with an appropriate starter gravity. As such, should I be concerned about pitching this starter? If it's okay, would it make sense to split it off and keep a pint or so for a future batch or is the larger pitch rate just making up for the stressed yeast?