KENNEWICK, Wash. (AP) -- The annual Washington Wine Grape Growers Conference runs through Friday at the Three Rivers Convention Center in Kennewick.

KNDO reports (http://bit.ly/Xj2oin ) the emphasis for hundreds of grape farmers, wine makers and vendors is producing world class Washington wines.

The conference includes a trade show in the Toyota Center arena and sessions on water use, advances in technology and immigration reform and mechanization.

One class Tuesday demonstrated how the same wine can taste different depending on the shape of the glass it's served in.

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Information from: KNDO-TV, http://www.kndo.com/

Copyright 2013 The AP.