Journey: Thoughts and Reflections along the path. 

Sheldon Haynie
 
April 30, 2014 | Sheldon Haynie

Low Water Farming

The current exceptional drought has been mitigated slightly by late rains, the estate gauge showing just about 9 inch since New Years. The typical range is 10-15 in, so that's not as bad as we had been looking at during February. We  made choices to prune severely and have been doing shoot thinning earlier to limit canopy size, so that we need less water to grow a smaller crop. We've put quite a bit of time into checking for leaks, and fixing the ravages of coyotes, freezing and hard water deposits as we don't want to waste any. 

In Athena's vineyard, we found that our irrigation pump can pressurize 1/4 of the acreage at a time, so we'll need to manually turn off half of the rows in alternation of each block to keep within a level where we get uniform dripping. We've mowed everywhere to reduce the evapotranspiration losses, and will continue to keep a low cover to reduce water needs and losses. 

 

Time Posted: Apr 30, 2014 at 9:17 PM
Sheldon Haynie
 
April 26, 2014 | Sheldon Haynie

Fining

White wines are generallty expected to be clear, a delight to the eye as well as the palate. The juice is pressed and even after settling, contains solids and yeast that form lees after fermentation completes. Our wine making style is to allow extended contact with the lees, until first racking, and then to work to clarify the wine for bottling.

Tradtionally this is done by gently rackjng the wine from container to container, each racking leaving behind more. Since some of the sediment is microscopic, and remains suspended, the technique of fining has evolved to accelerate clarification. Fining involves introducing an inert agent into the wine that will agglomerate tiny particles into larger ones by electrostatic attraction and/or chemically bind to unwanted compounds. 

Depending on the wine, and the desired outcome there are several agents that could be used. We typically use Bentonite and PVPP. Bentonite is a very fine clay,  we use it to bind proteins that would otherwise show up as a haze, especially if the wine was allowed to warm. PVPP is a very fine powder of Polyvinylpolypyrrolidone, an inert plastic, which agglomerates fine particles to itself and is then filtered out or precipitates as the particles clump.

Typical usage is in the range of a 1/2 gram per liter, and we run fining trials to determine the best rate, balancing clarity and flavor modulation,  as too aggressive a fining can strip the wine of its aroma. This involves preparing a series of samples and introducing Bentonite and/or PVPP to obseve the results. With seven whites this year a ten way matrix involves a table full of 375ml bottles.  A few days of standing and we then run the wine through a simple multiple coffee filter to emulate our production filter and evaluate to select the best treatment. 

After determining which to add, we will mix into the aging tanks, and then filter while racking to to leave the wine ready to bottle. 

 

Time Posted: Apr 26, 2014 at 5:04 AM
Sheldon Haynie
 
April 12, 2014 | Sheldon Haynie

Heartbleed Bug

You have probably heard of the OpenSSL bug called "heartbleed". We are assured by our website hosting/software company "Vin65.com" that their servers are and have always been protected by being in a virtual private cloud under Amazon Web Services, and that no customer data was at risk. From Amazon http://aws.amazon.com/security/security-bulletins/aws-services-updated-to-address-openssl-vulnerability/

We take your data & identity security seriously. 

 

 

Time Posted: Apr 12, 2014 at 7:53 PM