Bava Batra 97 - September 30, 27 Elul

If one makes wine with grapes that were already used for making wine, is it considered wine? What if it still tastes like wine? What are the rules for grapes that are truma, maaser sheni, or consecrated and are then reused to make wine a second and third time? Rabbi Yochanan said the rules that apply to those circumstances are the same for liquids that create susceptibility to impurity. To what was Rabbi Yochanan referring?  One of the criteria for wine that can be used for making kiddush is that it be a wine that can be used on the altar. What type of wine is being excluded by that statement?