How soon should I start seeing bacteria on my Petri dish?
I'm keeping it in a warm area. I also think some moisture got on the dish. On average, how long will it take?
I'm keeping it in a warm area. I also think some moisture got on the dish. On average, how long will it take?
hcbiochem
Favorite Answer
Usually within 24-48 hours you should begin to see bacteria growing. It might depend on what you used as a source of bacteria, but most common ones will grow nicely on agar plates in 1-2 days.
?
it depends on what nutrients are in the agar
you may have just plain agar with nothing in it
although things can still grow on that, but it shouldn't take 6 days
if you want it to grow faster, put it in an oven at 37°C (98.6°F) which is the normal temperature the bacteria would be growing in
they should come up within a day or two, bacteria grow very fast
try to use sterile technique and store the petri dishes upside down in the oven so that moisture doesn't drip down on the agar
you should probably get more than 1 or 2 colonies, yet if you do it wrong and not use sterile technique you may end up with a lawn of bacteria over the entire dish....