Magic Forums

I searched the forums here and the world wide web. I found much useful information. Some information concerns me. I am allergic to so many things and I would not want to make anyone sick posting bad informztion. I read multiple topics and sitea about Dandelions and making coffee from roasted ground dandelion roots., makeing tea from dried ground up dandelion leaves and even putting dandelion flowers in salad. Since I know you can buy dandelion tea my question is can you safely use dandelions growing in your yard for tea and coffee as multiple sites suggest?