for recipes etc. see mate

things we have

• kegerator fridge (but all pieces of that gets used for all other steps too) got trown out
• 3 30liter barrels only 1: (1 broken, other one in use for beer, 1 good one)
• 1 50 liter barrel
• 20kg co2 cylinder
• ph-meter (ph determines what organisms are gonna grow in the mate)
• thermometer BROKEN!
• teabag (needs to be replaced, got moldy)
• capper
• lots of bottles got thrown out
• 2 big pots (in mkz)
• beer cooler with 2 circuits

Stuff to figure out

Schema

This chart demonstrates the way Mate Brewery works.

Source of diagram

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Materials

• what materials to use for tubing
• Is copper / brass ok to use with acidic fluids?
• How to fix up shitty surface on stainless steel
• passivisation of stainless?
• how to clean
• is slowly cooling the barrel down problematic for infection? Should we use a heat exchanger to quickly cool down?

Cleaning

Someone should write what they are used for, in what quantities and temperatures.

Usefull cleaning products

Acids

• phosporic
• citric

Bases

• sodium hydroxide

Cleaning products not to use for sure

• anything with parfum
• anything containing bleach (it will promote oxidation of stainless)

Things to be build

Cart

Cart to mount everything on.

Containing:

counter pressure filler

Should make that we have less oxigen (and foam) while filling bottles.

Here the concept is explained: https://www.icfillingsystems.com/general/a-guide-to-counter-pressure-isobaric-filling/

What needs to happen is connecting all the hoses and stuff, and probly putting it on something that goes up and down, like the table drill stand.

We have one like this: https://brouwland.com/en/manual-bottle-fillers/11946-manual-stainless-steel-counter-pressure-filler.html

Cleaning: - After use we recommend to run a peroxide based cleaning product through the filler (such as PBW or Chemipro Oxi ) and rinse out with water. - Before the next use rinse again with a phosphoric acid based sanitizer (e.g. Star San).

fast carbonator

That is basically a pump that pumps mate around the barrel, inline is a T-piece with a carbonation stone, in this way it should be possible to carbonate a barrel in hours instead of days.

We have the carb stone and pump, what needs to be figured out is how to convert an A-coupling to have liquid flowing through the co2 side (it has liquid blockers in it now) << there is A-coupler without liquid blockers

bottle cleaner

Machine that sprays bottles first with cleaning stuff, and then flushes them with clean water

tapping installtion

compensator tap, connected to cooler and barrel

Pics of parts we have :

water manifold

barrel couplers (A-type and bajonet), compensator beer tap

A normal beer tap regulates the flow of the drink into the glass. A compensator tap, on the other hand, has a nozzle system inside, so you can tap drinks without foam. However, the compensator tap requires a higher pressure. From the outside, the difference is only visible through a small adjusting lever on the side with which the flow cross-section inside is changed. A compensator tap is particularly suitable for cola or lemonade drinks. Compensator taps often have a so-called "foam button" to deform the foam. A special tap is required for Stout beers such as Guinness. Stout beers require nitrogen to produce a particularly creamy foam.

flow meter / carb stone / more stuff

co2 pressure regulators

co2 manifold

left: cleaning connector for beer barrel connector right: pump

exploded vieuw of gas valve on beer barrel connector

Inline carbonater

beer cooler insides

fine pressure gauge (broken needle, non-calibrated, but cool)

(yes, the pics are humongous - working on it)

work in progress pics

carbonating and tapping setup at first successful trial

pressure gauge reading at first optimal level of carbonation

bottling setup

Future expansion

bottle washing machine

We have a working dishwasher, that needs to be converted to a machine that washes bottles, idea is to build a contraption from copper pipe where the bottles gets put on upside down, in each tube it will have holes that wash the inside of the bottles. That thing will replace the rotating arm at the bottom of the dishwasher, top arm will stay to wash the outside of the bottles.

T-piece with taps in carbonator circuit

• allows to prime the pump without disconnecting hoses
• allows to push out the water / desinfectant in the hose with mate from the barrel

Books potentially containing usefull information (have not read them yet)

carbonated drinks

The Soft Drinks Companion: A Technical Handbook for the Beverage Industry, Maurice Shachman

on libgen

Functional and Speciality Beverage Technology, P. Paquin

on libgen

• artificial sweeteners
• vitamins
• preservants

Cleaning-in-Place: Dairy, Food and Beverage Operations, Adnan Tamime

• what is safe to use on copper
• cleaning pipes without taking them apart
• how desinfectants / detergents work)

on libgen

Protective Cultures, Antimicrobial Metabolites and Bacteriophages for Food and Beverage Biopreservation

on libgen

fermentation

Handbook of Food and Beverage Fermentation Technology

on libgen

Enzymes in Food and Beverage Processing, Robert L. Ory (1977)

on libgen

Fermented Beverage Production 2ed, Andrew G. H. Lea

Explains malting, fermentation, etc. for alcoholic beverages

on libgen

The yeast handbook

on libgen

money spend