Nope, jiffy’s are coco peat. There’s two parts to coconut husks- the fibrous coir, hairy looking shit, and the spongey “peat”. It’s just called peat, but actually is very different in texture. Take a close look at my pics above- you’ll see it’s coco peat. The colour is a dead giveaway. The only thing coir is good for is aeration, but don’t use too much of it. Nice clean coco peat is an amazing growth medium, if you can find a good quality source.
Edit: Sorry Narnia, misunderstood your question. Yes, you’re right.