Cultures for Health You Make At Home 2 Packets of Starter Culture You Can Do This Non-GMO Gluten Free We Make It Easy. All You Need to Grow Healthy! Real Yogurt Make authentic, heirloom-style Greek yogurt just the way you and your family like it. If you prefer the extra thickness of commercial Greek yogurt, simply drain away the excess whey - or enjoy it just the way it is. Either way, it's rich, tangy, and easy to make. This box includes 2 packets of thermophilic yogurt starter, which can be re-cultured indefinitely for continual use.