Tanks containing compost tea preparations at Seresin. Tanks containing compost tea preparations at Seresin Put the bkettle/b on Clive b...../b Isabel bEstate/b Vineyard, Renwick, Marlborough, New Zealand April 2006. I was shown by Mike Tiller ( proprietor of Isabel bEstate/b) how to softly punch down the Pinot Noir 'cap' using the pneumatic pigeage machine. Keeps everything moist and allows gentle extraction as a result during the fermentation process ...