In my understanding, the way this works, is that there is a protein in dry beans that serve as a protection against the bean being eaten by animals, so that it can remain a seed and grow more beans. When the bean is soaked, and begins to sprout, that protein is activated, and it is undigestable to animals, who learn don't eat that thing. By providing an enzyme that either converts starch to sugar, or by fermentation (converting sugar to alcohol), that protein can be pre-digested, to make it digestable by humans.
There really isnt an average number of showings before getting an offer. Some sellers will get an offer on the first showing, others may not get an offer until after the 25th showing.
We've been on the market a short 5 days now. We have had a total of 4 showings in those 5 days. One of the showings gave initial feedback that was very positive. The latest showing came in with an 'urgent' need to see the property.....however, no offers have bee made. As first time home sellers, we do not have anything to guage interest on.