Cresco concentrate question

How often do they taste like sulfer and why? I bought 1 supply & 1 cresco and they're both terrible. Didn't know this was a thing until I searched it. I read cresco won't refund, for you not liking the taste but this makes me never want to risk it again.

1 is supply grapefruit bubble crumble wax packaged 3/18

Trying to find the cresco. Label fell off the bottom.