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Published on Mar 5, 2012
Brewmigo is a 5 gallon All-Grain electric brewery built from scratch using home appliances other equipment that are easily available.
Features of the Brewmigo are: Brewmigo's brain is supported by an Arduino Uno Micro-controller. Arduino connects to the different components in the system via a shield. Wireless remote allows easy initial setup of the system. The LCD module displays current and target temperatures along with the status of each module. 3 PID modules for the Hot Liquor Tank, Recirculating Infusion Mash, and the Main Kettle. 2 Auxiliary component outlets which are currently used for a March Pump and an Exhaust Fan. LCD also displays a clock which helps the brewer keep track of the different stages. Entire system consists of stainless steel or Brass(lead-free) fixtures for easy transfer of liquid. 20 plate wort chiller provides rapid cooling of wort after the boil is complete.
Components of The Brewmigo: Arduino Micro Controller: Cost to build
HLT: Hot Liquor Tank (1500 Watt Element @ 120V). Raises 2.5F for 4 gallons of water in 1 minute.
Brewmigo's HLT can heat up to 5 gallons of water for the Mash and Sparge process. Usually the recipe calls for 3-4 gallons of water and depends on the grain bill. Once this water is drained, the HLT can be refilled and started at a higher target temperatures for the sparge water.
A 5.5 Gallon Rubbermaid water cooler makes Brewmigo's Mash Tun. It is also fitted with a brass fitting for easy draining of liquid.
March Pump: 809HS-PL
Nothing could be more popular than a march pump among home brewers! Although it is an expensive option, it has very good reviews and durability at high temperatures.
RIM: Recirculating Infusion Mash (1000 Watt Element @ 120V).
Raises 1.85F for the 4 Gallon mash in 1 minute. The RIMs module is a noodle/pasta boiler bought at a local Chinese super market. The appliance consists of a 1000 watt heating element
KET: Main Kettle (5500 Watt element @ 240V). Raises 5.5F for 7 gallons of liquid in 1 minute.
The main kettle consists of the most powerful element in this system and is supported by a 75Amp Fotek relay backed up by a huge aliminuim heat sink. The Arduino default target for this element is 212F. Once the temperature reaches (Target-1F), Arduino will switch the element on/off every 5 seconds. This seems to be the only way to control the vigorous boil.
20 plate wort chiller does a real neat job of cooling 5 gallons in 2 minutes!! No ice fiiled sinks! No stciking copper pipes into wort!
Part 1 Introduction Part 2 shows a demo of the Mash and RIMS process. Part 3 shows a demo of the Boil and Fermentation process.