you could but you would want to add lots of yeast nutrient. and there is some chance, if Chris White is correct, that you will grow yeast with a diminished ability to metabolize maltose which isn't good.
Are you an all grain brewer?
If so consider adding an extra lb or two to the next brew and pulling off an extra gallon or so of wort. boil/dilute to 1.030ish and pressure can or freeze. If you freeze boil again before use.
This is free! (or nearly) I tend to run around 70% extraction eff so I can just put some extra water through my grain bed and get a few quarts of starter wort.