http://www.techniquesinhomewinemaking.com/blog A blog for those passionate about home winemaking Mon, 30 Jan 2012 13:34:25 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.techniquesinhomewinemaking.com/blog/comment-page-2/#comment-8866 Daniel Mon, 30 Jan 2012 13:34:25 +0000 http://techniquesinhomewinemaking.com/blog/?page_id=2#comment-8866 If copper (Cu) is added as copper sulfate (CuSO4) BEFORE the start of fermentation (AF), the sulfate can be metabolized by yeast into sulfite and sulfide. So CuSO4 should only be added once the AF -and- MLF are over and the wine has been stabilized. Assuming that very little CuSO4 is added, there will be little impact on total SO2. If you smell sulfur, I recommend you aerate the wine first to try and dissipate the smell before you add any CuSO4. If copper (Cu) is added as copper sulfate (CuSO4) BEFORE the start of fermentation (AF), the sulfate can be metabolized by yeast into sulfite and sulfide. So CuSO4 should only be added once the AF -and- MLF are over and the wine has been stabilized. Assuming that very little CuSO4 is added, there will be little impact on total SO2. If you smell sulfur, I recommend you aerate the wine first to try and dissipate the smell before you add any CuSO4.

]]> http://www.techniquesinhomewinemaking.com/blog/comment-page-2/#comment-8865 Daniel Mon, 30 Jan 2012 13:28:45 +0000 http://techniquesinhomewinemaking.com/blog/?page_id=2#comment-8865 I usually rack after MLF but that depends on the amount of lees you have. If you still have gross lees, you should definitely rack. More important though is that you sulfite the wine once MLF is over. I usually rack after MLF but that depends on the amount of lees you have. If you still have gross lees, you should definitely rack. More important though is that you sulfite the wine once MLF is over.

]]> http://www.techniquesinhomewinemaking.com/blog/comment-page-2/#comment-8858 Joe Mon, 30 Jan 2012 02:49:53 +0000 http://techniquesinhomewinemaking.com/blog/?page_id=2#comment-8858 What affect does cooper salts have on bound and free SO2? Should it be considered as a treatment option when there is slight smell of sulfur in the wine? What affect does cooper salts have on bound and free SO2? Should it be considered as a treatment option when there is slight smell of sulfur in the wine?

]]> http://www.techniquesinhomewinemaking.com/blog/comment-page-2/#comment-8857 Joe Mon, 30 Jan 2012 02:40:52 +0000 http://techniquesinhomewinemaking.com/blog/?page_id=2#comment-8857 Following your guidance, I reinitiated MLF about 3 weeks ago and it looks to be moving along just fine now. Adding nutrients, maintaining the proper temperature, and regular gentle stirring seem to be all it needed. My plan to to continue this regiment until there is no visible sign of activity (CO2 generation). I'll then conduct another chromatography test. If the test shows MLF is complete, is it important to rack the wine into a clean vessel immediately, or can the wine be left as is until I move it outdoors for cold stabilization later in February? Following your guidance, I reinitiated MLF about 3 weeks ago and it looks to be moving along just fine now. Adding nutrients, maintaining the proper temperature, and regular gentle stirring seem to be all it needed. My plan to to continue this regiment until there is no visible sign of activity (CO2 generation). I’ll then conduct another chromatography test. If the test shows MLF is complete, is it important to rack the wine into a clean vessel immediately, or can the wine be left as is until I move it outdoors for cold stabilization later in February?

]]> http://www.techniquesinhomewinemaking.com/blog/comment-page-2/#comment-8774 Daniel Wed, 11 Jan 2012 00:17:26 +0000 http://techniquesinhomewinemaking.com/blog/?page_id=2#comment-8774 I've used many kinds of kits with varying levels of success. I can't point to a single one that I would recommend; however, there is a pretty strong correlation between price (of the concentrate and additives only) and quality. You can always look at competition results at www.winemakermag.com to see which have performed best. I’ve used many kinds of kits with varying levels of success. I can’t point to a single one that I would recommend; however, there is a pretty strong correlation between price (of the concentrate and additives only) and quality. You can always look at competition results at http://www.winemakermag.com to see which have performed best.

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