When I bought that pipe it came just as you see it. Seller said it had been cleaned so it should be ready to use. When first started
with only 1 pipe, I cleaned it really well after each use. In my experience, it takes somewhat prolonged use of 1 type to ghost
a pipe. After each use i would dip a pipe cleaner in alcohol and run it thru the stem then fold the pipe cleaner in half, soak again
and rub it around the bowl. That worked for me for some time until I bought more pipes and dedicated the to 1 particular type of tobacco.

That's just me so others may have ideas as well.

I prefer to use rum or whiskey instead of isopropyl alcohol.