Just soak the beet pulp with extra water, and then pour the extra water out and rinse the beet pulp and it will take out the molasses. It's only used to keep the dust down as someone else mentioned, so it is very minimal. Depending on where you live, triple crown and LMF both offer great feeds for foundered horses. LMF offers low carb complete and triple crown has safe starch and another product that has almost no sugar in it for foundered horses or horses with cushings. I wouldn't worry too much about about late pasture grass hay, the sugar level is going to be minimal.