Blood culture

I cultured 1 mL of my own blood on a nutrient agar plate (well, sterilized pickle jar) (temperature 55-62F) for 3 days.  I got about 60 colonies of what look like E.coli, and maybe 5 or so smaller intensely white colonies.  Some of the control plates also developed a few colonies later.  Sterilization needs some more work.
 I did not swab with iodine before the blood was drawn (only alcohol), but everything else was sterile.  Not much confidence in this result.  Blood drawing tips.
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