Be careful who you buy from
The 1 lb package was delivered in odd packaging, just a plain brown bag, not what is shown in the picture.  NONE of the sticks ever released the bubbles that indicate the filtering process.  I know this from previous experience with the same product from another vendor.  The first set of charcoal had bubbles for weeks, and once the bubbles stopped, I would boil the sticks, and then the bubbles were back, that was the routine for more than six months.  Eventually, the sticks stopped producing bubbles, but that was ok; 6 months seemed fair, reasonable.  This set is another story; let's see, odd packaging, no bubbles, re-boil and still no bubbles, different sticks from same brown bag and still no bubbles.  Hmmmmmmm
Rating: 1 stars