I have an 8oz penzance in a jar. Pretty sure it got mold. Think it’s impossible that it’s plume because it’s too fresh. It’s only in a few spots. Would you try to pick it out or trash it?
Esoterica is known for having plume, often right off the bat. This is because they age their tobacco longer than other brands; which is part of the reason they are popular. They are good-to-go right away. My first Stonehaven had white powder on it, and I was worried it was mold because it was my first time experiencing this. The white powder did not come off upon trying to rub it off, and it was not fuzzy, so I went with plume. (People here said that mold will be clearly fuzzy, can smell, and will come off easily if scraped.) Anyways, that Stonehaven was amazing. I still have some left. My second purchase of Stonehaven was average, and I'm guessing that Stonehaven with plume was a really good batch. The plume could have added to it being so good as well.
My local B&M once threw out the rest of their Blackpool (they sell the bulk Esoterica in 2 ounce portions, in clear plastic bags) after discovering "mold." Now, I don't know if it truly was mold, because Esoterica tobaccos often have plume or develop it quickly. However, one of my opened tins of Dunbar did actually develop mold. It was clearly fuzzy white mold like those Halloween spider web decorations. But the key was that it had been opened, and was just sitting in the tin, so moisture could have gotten in there and just sat.
The photo you provided looks like plume. In fact, it looks like that first batch of Stonehaven I got. But I can't guarantee what it is. Take Jimink's advice above.