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Hipster batch brewer



We have divided the brew process into three stages; Pre-brew, Extraction and End-phase. Batch-mode works like this:
  1. Set a temperature for the pre-brew water. Depending of the coffee, higher for dark roast and lower for light roast.
  2. Set a pre-brew volume. Normally 10-12% of the total brew volume.
  3. Set a pre-brew time. This is the blooming phase.
  4. Moving into the Extraction phase, by default set the temperature 3°C down from the pre brew temp. If you maintain the temperature from the Pre-brew phase the coffee will over extract, that’s because of the fresh water.
  5. Chose how to distribute the water. Few and big pulses will shorten the extraction time, many and small pulses will lengthen the extraction time and leave the coffee bed even.
  6. Set a temperature for the End phase. By default set the temp 5°C down from the Extraction temp. This is where you get the bitterness and the woody taste. If you lower the temp you tone down the extraction and get less bitterness.
  7. Set the drip timer. This is the time it takes for the brew basket to run dry.
All these parameters let’s you brew a batch with the same clean and clear taste as you get from a good hand brew. In batch mode you can brew 700-3800ml.

3 phase of brewing

continuous vs pulse pouring 

SCAA on wetting hydrolysis and extraction

baristahustle 

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