I am purchasing a yeast starter kit and I am currently making 5gal extract batches only. Would a 1000ml flask be big enough to make a start with something the size of a wyeast pack, or will I wake up the next day to a bubbly mess? 
If you are on a stirplate an airlock prevents aeration which hinders yeast growth. Just put a sanitized piece of foil over the jug. Many think Jamil's advice on starters is the best info out there. Check out http://www.mrmalty.com/. Scroll down to the Pitch Rate calculator and read his pitch rate explanation ( http://www.mrmalty.com/pitching.php ).Pugilist said:Thanks for the input gents. My LBS recommended a 1gal glass jug, and he outfit me with a stopper and 3 pc airlock. He just told me to clean the jug immediately after pitching to keep it from caking on inside. Hopefully this works!