Originally Posted by Mel!
What is Terroir?
Basically, it is the complete package
of local conditions under which a wine grows. It not only includes the weather conditions but the soil, a certain mountainside a vineyard, or group of vineyards grows their grapes, the sunshine, the rain, etc. Every aspect of the terroir goes into how a wine will taste. A Californio pinot noir may be the EXACT same grape as a French Burgundy, but, they will have totally different flavor profiles because of their terroir. Even French Burgundies, from different vineyards/locations have different terroir notes to them.
Edited to say: Sorry, I had to run right after I typed the above. I hope that explains it a bit. If you stand in a vineyard and look up, down, all around - every little bit of what you see is the terroir.
I hope that explains it. Ask if anything else needs a further explanation.