Machine made wine

If a wine is completely machine-made, can it be kosher without a hechsher? (I’m asking because kosher-certified wines are quite expensive here, sometimes double the price of their non-hechshered counterparts.) Thank you Rabbi, for everything you do. We’re...

Dishwasher

Can I kasher a dishwasher for pesach? If so how? Could I use the dishwasher to kasher my dishes for pesach, since it gets very very hot?  Thank you!