Making heaps of product in Schedule 1 is only half the battle–you'll also need to sell it, which generally means stocking up your dealers. The problem is that their inventories are incredibly small, only able to carry five different items at once. Using the brick press lets you bypass this limit somewhat, squashing stacks of drugs down to make your dealers more efficient.
The brick press is similar to the jar, which also lets you stack items into a single item slot. Bricks are much better than jars, though it's not immediately obvious how you actually use the brick press.
