I made 2 "bulk" culture from dvi's: MM100 and FD. I've done the MM100 before, and it turned out as expected--a consistency kind of like yogurt with a pH around 4.5. The FD, however, is more like a thick slime ( a spoon pulled from it draws out a long strand ... like boogers...) and not yogurt like at all with a pH (after an additional few hours at 88 F) of 4.8. This seems odd to me and indicates that it got contaminated with something else. I've never done FD before though, so perhaps this is normal. Opinions?