On plastic as a food-group and Night Court: Night court is worth watching. Go. The intertubes will still be here when you’re finished. Regardless, at some point, Harry (the judge) has a circus of defendants. I’m being literal here. The Geek (as in eats everything rather than Geek as in fixes-your-computer) of the circus eats Harry’s gavel. Harry says, “Why did you eat my gavel.” The Geek replies, “Wood is one of the four food groups.” Harrry double-takes and asks, “And the others are?” To which the Geek replies “Metal, plastic, and the white stuff you find in twinkies.” Really… if you haven’t seen it, binge watch it somewhere.
Note that I’m not in any way responsible for what you eat. You are responsible for what you put in your mouth. In fact, I’m neither recommending you do or don’t eat anything. I’m on the intertubes, for gosh’s sake. You’re pretty much off your rocker if you’re listening to anything I say… But, then, if you do something truly dumb, you might as well make a video to edify others. Link it up! I must be amused!
On doubling the recipe: According to the documentation with my large Stand-Mixer, which is the 475W model, it can handle a recipe with 14 cups of flour. using the lower of the 5–6 cups of flour recomendation, you can make 5 loaves or 12.5 to 14 cups of flour. Note that this would be 12.5 to 15 cups of flour, but 15 cups is aparently too much for the motor. The manual also notes that you require the 6 qt bowl (and dough hook) to make a recipe with more than 12 cups of flour, which would limit you to doubling the recipe.
Those of you with large biceps that want to try this by hand (or those of you with a large commercial mixer) can do as you please. I suppose one of those cement mixers from the rent-all might do a big load. Or we could graft a much bigger motor onto one of these things. But in all Tim Taylor tradition, you’re responsible for your own actions. Don’t blame me if something literally blows up. Just make sure you make a video for you-tube for me. I’m bored.