20190418_094154

Student interns just wrapped up three days in the Innovation Center working in teams to solve a business challenge as part of the CCC Maker Makermatic program. Created by our friends at Sacramento City College Makerspace to meet the internship goals of the CCC Maker statewide grant, and coordinated locally by Seeta (FLC’s Innovation Center Internship Opportunities Specialist), the program was an opportunity for students to propose solutions for business challenges in partnership with Solid Ground Brewing, a local brewery and restaurant. Solid Ground also makes wine, and winemaker Scott came out to the Innovation Center to provide context and listen to student presentations.

2019-04-18_08-43-16

The night before final student presentations, Max (Chemistry), CJ (student and Makerspace Facilitator) and I worked to create a gift to present to Solid Ground at the close of the event. We decided to design a beer flight sampler display, with custom-etched flight glasses. CJ fired up Safety Scissors (the name for the smaller of our two laser cutters), and we worked out a design that combined Solid Ground’s logo and Nova, our own space bunny logo/mascot/spirit guide.

Collaborating

Here Max is evaluating different etching parameters. We didn’t have any beer in the space, so we filled the test glass with a combination of soy sauce and water to provide a little contrast while we worked out the details.

Prototyping a Flight Glass Etching

After a few rounds of prototyping – size, placement of thumb and finger indexes, type – we cut, glued, and assembled the pieces.

2019-04-19_07-41-32

The glue dry, we sanded away the laser burn marks, friendlied up the sharp edges of the plywood, and sealed everything with cutting board conditioner.

Flight

Each glass has a number etched into Nova’s (our space bunny mascot’s) faceplate, corresponding to a numbered position on the flight corral.

2019-04-19_07-41-46

At  the close of the Makermatic event, we took Scott over to the Spider Shed (our nascent brewhouse) to talk about ways we might work together with Solid Ground, and to sample some kombucha Max had kegged from one of our brew days.

Keezer

Max has been perfecting some procedures using Atomic Absorption Spectroscopy (AAS) equipment in the Chem lab, and we talked with Scott about the potential to have students work with local breweries to provide water quality analysis as part of our larger FermSci efforts.

Atomic Absorption Spectrometer

We like traditions in the Innovation Center (things like Builders’ Rights – see ROSTOCK MAX V3 BUILD DAY – PART TWO), and Scott became the first brewer/winemaker to sign our (nascent) keezer!

2019-04-18_08-51-38

Max Mahoney (Chemistry) and I spent a long day brewing a couple of batches of beer recently. Now familiar with the process and how to execute it in the makerspace, we were able to add lots of variables and processes and gear, building on our experience with Brew Day v2.0, and our original, somewhat less-than-successful Brew Day v1.0.

One of the biggest changes to the process this time around had to do with the water. Specifically, we started with deinonized (DI) water, and Max added various salts to create ideal water, which as I understand it is a big factor in the overall success of the end product.

Water Chemistry

We brewed two batches of beer, and one of kombucha, which we’re fermenting in one of the smaller fermenters.

From Brewer to Fermenter

Testing the pH using one of the new meters.

pH Checking

Improvised wort chiller, until our conterflow setup arrives.

RoboBrews Assemble!

Into the fermenters.

Two Brewers, Two Fermenters

We documented things more completely throughout the process this time. Timing notes are especially important, as we’re still working out how these brew days work as labs and activities. How many simultaneous batches make sense, and how many people can effectively work in the space at the same time.

Captain's Log

Meanwhile, batch the second looks and tastes pretty good, with some distinct and pleasant apricot notes.

The Color of Brew Day the Second

We’ve got both fermenters in The Spider Shed (a former chemical storage building that we’re repurposing as a nanobrewery) hooked up to a heating and cooling system, and they’re happily bubbling away.

Brew Day the Third

We’re still learning so much, and the process is becoming even more interesting. Max is especially stoked about tweaking the water chemistry, and has lots of ideas about wrapping class activities and labs around that process. A couple more days, and we’ll cold crash these batches and keg ’em up!

With some new fermentation science gear on the ground, Max Mahoney (Professor of Chemistry and makerspace champion) and I decided to spend a day brewing a pale ale, following our first brew day some months ago. Brewing is mostly a lot of cleaning…

Cleaner

…and sterilizing…

Purge

…and waiting. Waiting for things to heat up. Waiting for things to cool down.

Soon To Be Pale Ale

Sparging is my special gift.

I, Sparger

After the sparge, we checked the brix with our new brix checker.

Brix Testing

We weren’t even close, but realized that we were sampling from the top, which was largely water from the sparge. After the boil, we took another reading, and we were right where we needed to be.

Not Even Close

Here we’re transferring from the Robobrew to the new Ss Chronical fermenter.

Gravity

The Chronical has a heating element, and we’ve got a chiller on the way. Here Max is setting the fermentation temperature.

The Number of the Beast

The brew complete, we set up a webcam to stream the bubbling so that we could monitor it over the long weekend. So far, so good! It’ll be maybe two weeks until we can sample the outcome.