Homemade yogurt lasts 2-3 weeks.
Use whole milk for a creamier yogurt.
Oven method: Make sure the container you set the yogurt in is oven proof.
Homemade dahi is free of any additives, gelatin and pectin.
Always use a plain yogurt starter, to make flavored yogurt add in fresh fruit purees or vanilla essence after the yogurt has been made and chilled.