A baler for producing round bales includes a harvested goods feed-in device, a pressing chamber, and a feed-in channel that has an area facing the pressing chamber and through which harvested goods can go from the harvested goods feed-in device to the pressing chamber, wherein the area of the feed-in channel facing the pressing chamber has a width that is smaller than the width of the pressing chamber. The baler may include a guiding device for reducing the width of a feed-in channel of a baler.