Entries now open for 2020 Sauvignon Blanc Top 10

Entries now open for 2020 Sauvignon Blanc Top 10

Entries for the 2020 Sauvignon Blanc Top 10 are now open. Sauvignon Blanc South Africa invites producers of this popular cultivar to enter their best wines by Tuesday 18 August 2020 for the annual competition. Late entries will be accepted until Friday 21 August 2020....
Removing copper-H2S complexes using membrane filtration

Removing copper-H2S complexes using membrane filtration

Dr. Carien Coetzee Basic Wine 30 June 2020 FOCUS ON H2S: Part 6 The entire Focus on H2S series has highlighted the importance of removing the copper-H2S complex from wine, especially in cases where copper was added as a remedial treatment for the removal of reductive...
Removing copper-H2S complexes using PVI/PVP

Removing copper-H2S complexes using PVI/PVP

Dr. Carien CoetzeeBasic Wine28 June 2020 FOCUS ON H2S: PART 5 In Part 1 of this Focus on H2S series, the implications of fining a reductive wine with copper(II)sulphate were discussed. Cu2+ will bind with H2S to form a copper-H2S complex, however, contrary to popular...