Many many months ago, in Austria far away, a sourdough starter was supplied from a baker, good and qualified. The Austrian starter was dried and traveled to China where part of it mixed and grew nurtured in the presence of Chinese all purpose flour and later with Austrian Rye flour. Sometimes it sat out to grow, sometimes it sat in a refrigerator, one time even froze but it lived long and prospered and provided many a loaf of bread. Then it was dried. This happened at various times in the last few months.
It might be interesting to compare the starter 6 months ago and now, making two identical loaves and see if the SD has changed in flavor. Two very different environments. A change in starter flours and water not to mention treatment. Will they taste the same? Will they rise the same? Have I changed the characteristics of the starter from the original?
First part of experiment requires re-hydration of dried starters, then feed and stabilize, keeping them separate but treating them alike. Then to use in a recipe and do blind taste tests. Mad scientist has her baggies of dried starter ready and they are February dried starter, April, and August, a control has been made using no starter. 10g of each dried starter was placed into a jar and 40g water was added, after 10minutes 15g of rye flour was stirred in. Each is covered with butter paper and just sitting there waiting for action. One interesting observation...April dried starter smells like cream cheese. (it should be noted that this sample was stored in glass for a long time and the others in plastic baggies...hmmmm)