from: Showstoppers From SIMEI and Enovitis
auto-vinification tank systems: automated cap management, temperature control and the handling of lees, seeds and pomace
Automated fermentation systems have a number of advantages over manual pump overs.
1. labor savings,
2. automated systems can deliver precise and repeatable regimens day and night
3. respond to tank temps, Brix level, carbon dioxide evolution rate, etc.
4. Cross-contamination among tanks is avoided, (line of sight guesses about pipe connections is dangerous)
DEFRANCESCHI FERMENTERS
punchdown-vs-pumpover
"Pumpovers can extract higher amounts of tannin in a wine depending on the frequency and force. Some pump over systems are basically wine sprinklers, offering a gentler extraction and some aggressively stir up the fermentation tank. For larger fermentation tanks in commercial operations, much needed oxygen comes through a pumpover device.
Punch downs, on the other hand, are a very delicate way of stirring a wine. They keep skins from getting too extracted and little to no amount of added oxygen in the fermentation. Punch downs are typically done by hand and are more popular with non-interventionist winemaking."
other pages of interest, but no more time tonight:
https://prezi.com/kikrobseu37j/mexican-wine-chain-analysis/
http://nobleroute.com/about/
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