Science glass (Factory block)

Here is where I make all my glass for science purposes, mainly because most of them can take boron trioxide as an extra input to make them more efficient, so grouping them together makes sense. Here is where I make my empty petri dishes, glassware, and optical sets. I make the rubber stoppers on site, since they aren't used in many places, and also the boron trioxide for the same reason.

Recipe 1
Inputs:


 * Coal
 * Latex
 * Coke
 * Boric acid
 * Molten glass
 * Hot air

Intermediate steps:


 * Make rubber stoppers from the coal and latex
 * Turn the boric acid and coke into boron trioxide

Outputs:


 * Glassware
 * Empty petri dish
 * Optical set