How can I get rid of this spot? I sanded and thought I had gotten rid of it. I did not use mineral spirits before applying stain. Any idea on how to get this spot to darken?
That's caused by some sort of contaminant getting on the surface (perhaps a glue drip?) While sanding will work, I find the best thing to do is to use a wood scraper such as these scrapers to isolate the removal of the substance to just the area (instead of the whole table).