It would be interesting to see pictures of experiments in process, or pictures of current beers that we might have in progress. Here's one from today; I had been wondering whether there would be a visible difference in the appearance of two similar starters, comparing one with o2 introduced to the head space, as compared to 1 without, all other things being reasonably identical to a gram or two. I needed the starter anyhow, & it wasn't hard to test. The result so far is in the pic, as is the sketchy rig-up that I used to get the o2 in there. The starter on the right, with the cable tie on it, got a shot of o2 into the head space at the beginning of 3 ea. 5 minute stir/rest cycles, the starter on the left, same stir/rest cycles but no shots of o2. The picture is after about an hour of rest for both flasks. Sorry if the pic is too big. Would like to see pics of what else is going on out there!