P 4.05 – Recap and Glossary

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Recap

  • For larger scale brewing, drawdown should occupy 25-30% of the total contact time.
  • For single cup brewing, the necessity of keeping the slurry temperature sufficiently hot to promote good extraction yields needs to take precedence over the drawdown time profiling.
  • Spray heads with insufficient streams promote wells in the coffee bed.
  • 01 sized flat-bed brewers promote even extraction but can trap grinds in the fluted edges.
  • Filter papers are fabricated with wet strength agents that create ionic bonds between the cellulose to make them stronger.
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