[Ellendra]

And why are commercially grown sprouts sometimes re-called?

The growing conditions needed for sprouts are the same as what's needed to grow mold. When I grew sprouts for the farmer's market years ago, I often had to throw out batches because they got contaminated and started growing mold. If you scrub and sterilize your growing containers between batches it'll happen less often, but there's no practical way to prevent it entirely.

[SisterK]

Were you sprouting in glass or plastic?