thermal shock

$200 would like to sell locally 15 gallon stainless steel kettle/pot Ball valve blichmann thermometer Thick Polarware pot original owner, very good condition and very solid pot location: west hartford, CT

Hi All - I have a question about floculating yeast. I was reading Palmer's book, which suggests decreasing the temperature 2 degrees per day following the diacetyl rest until 10 degrees below fermentation temperature to avoid thermal shock of the yeast. My question is whether this is only...