I can recommend these coals with a clear conscience! After the gunpowder caught fire the coal burns evenly and well developed after a short smoldering excellent heat! The glow period is when the coal is not in the draft, above average for this type of coal, but does not come close to coconut coals. But what was to be expected. Point deduction, there is that which burn the gunpowder smoke above average and as a result unpleasant odors releases. Had so far not I!
A little tip: light outside the window, so the room smells afterwards not unpleasant by gunpowder smoke. After the black powder is blown through, suspend the coals for a minute a slight breeze. They glow with well and develop a full potential of heat.
