Yes, that's what a stout is. It just means a strong porter.

Yeah, because stout just meant strong, yeah.

Which is bizarre, which, considering what it became with Guinness, but we'll talk about that in a bit.

So there were a couple of other innovations as well as the hydrometer and the thermometer

which let people brew it high quantities

right as well as high quality high quantities so number one was the invention of

really big tanks.

Yes.

That's how we won the war.

Mechanized infantry.

Other kind of tank.

Yeah.

So this is actually a picture of a fermentation tank at the Maker's Mark Distillery.

A long-trusts.

But a large porter tank would be similar to this right so really big tanks were

important because they allowed Porter to be brewed reliably year-round because

the more volume you have in the tank, the harder it is for the temperature of the beer to change, right?

Yeah, insulates, right?

Yeah, the beer insulates itself.

Because these were essentially built like really large barrels.

You can see here, like barrel staves. These are metal rods. In this case I'm not

sure how they were built. There's no pictures that I could find of old Porter

...