When brewing lagers, one often finds it time consuming and tedious to build up a starter to 6-8 liters, especially since I usually use the wort from the brew to do so. The main wort in cooled and allowed to settle in the cooler while starter wort (~ 2 gal) is brought up to pitching consentration. I have found the computer fan stir plates to be inadequate for the task because of the time involved in only being able to use a 2 liter flask.
Now, I pitch the pack to 2 liters after brewing. The next morning, the remaing 6 liters of starter wort is added to the starter jar. The next morning, the entire starter is added back to the main wort after racking to a sanitzed fermenter. Both the main wort and the stir plate are kept in the cooler at 50f.
This thing cuts the time for building a huge starter in half.
Now, I pitch the pack to 2 liters after brewing. The next morning, the remaing 6 liters of starter wort is added to the starter jar. The next morning, the entire starter is added back to the main wort after racking to a sanitzed fermenter. Both the main wort and the stir plate are kept in the cooler at 50f.
This thing cuts the time for building a huge starter in half.