There is lots of fuss about the importance of glass on the taste of wines. Some thoughts around the topic in two posts.
Compared two totally different red wines, Faustino VII 2011 and Châteauneuf-du-Pape Domaine du Vieux Lazaret 2010. Part I covers tasting of most modest Faustino, Faustino VII, which should be full-bodied Spanish tempranill0 with medium tannins and delicately spicy regarding to Alko notes.
Tested both wines in four different red wine glasses:
Glass 1: Sommeliers Bordeaux GC (Riedel, Austria)
Huge 27 cm high glass with capacity of 0,86 litre. Could take the whole bottle! Glass maker Riedel recommends it to be used with following wines/grapes: Bordeaux (red), Cabernet Franc, Cabernet Sauvignon, Chablis, Fronsac, Graves rouge, Listrac, Margaux, Médoc, Merlot, Moulis, Pauillac, Pessac Leognan (Rouge), Pomerol, St. Emilion, St. Estèphe, St. Julien
TASTING NOTES: Glass is too big for tasting because spinning the glass is quite clumsy. Huge size makes you too careful which does not help in the tasting. Mixed opinions compared to Vinum glass; actually it was a difficult task to rank these glasses with similar shapes. With affordable Faustino VII, glass did not provide any extra amazing experience; so we have to wait for how better French wine manages.
Glass 2: Vinum Bordeaux (Riedel, Austria)
Typical 22,5 cm high red wine glass with capacity of 0,61 litre. Recommended by Riedel to use with following wines/grapes: Bordeaux (red), Carmenère, Malbec, Cabernet Franc, Cabernet Sauvignon, Merlot, Zweigelt
TASTING NOTES: Maybe easiest shape and size to taste Faustino VII. THE NOSE and THE TASTE were in balance. Vinum Bordeaux glass was the WINNER OF THE TEST!
Glass 3: Essence (Iittala, Finland)
23 cm high with capacity of 0,45 litre and designed by Alfredo Häberli for Iittala in 2001. No recommendations for wines or grapes. In Finnish Iittala web -site also classified as beer glass.
TASTING NOTES: With Faustino VII Essence glass did not impress. It managed worst in THE NOSE and THE TASTE tests. Alcohol covered bouquet of tempranillo and flavor of the wine was bitter. LOSER OF THE TEST!
Glass 4: Basic tasting glass
These glasses are usually used in basic wine tastings. This glass was brought on from Barcelona Estacio Enologica 100-year celebration but glass type has also been used in Finnish Wine Fairs several years ago.
TASTING NOTES: Bouquet of tempranillo was most pleasant and easily identified, but taste of wine was as bitter as it was with Iittala Essence glass. Too much tannins and spices.
Conclusion
Size does not matter but the shape really matters. It is important to choose right glass for different type of red wines. Maybe Spanish tempranillo is not the best wine for Riedel glasses, because it was not recommended by glass maker. One option might be that Riedel ignores certain countries/regions/grapes. However, tasted wine was quite modest and immature. None of the glasses did not improve taste significantly.
In Part II we analyze Châteauneuf-du-Pape Domaine du Vieux Lazaret 2010 which was tasted by using the same glasses.
Reijosfood 
Educating post, I love to drink wine but I’m learning more about the “art” to it. Stores market glasses white or red and as a relative novice in understanding the intricacies, I typically go for personal style choice vs what will render the best taste. Thanks for sharing and for also stopping by and liking my recent restaurant review post.
Size always matter;) but seriously yes the shape of the glass to artiste the wine makes a noticeable taste difference
Thanks for the comment! Whats your favourite wine glass?
Glass number 4. looks like what they use at wine fairs here in France too. Compact and easy to operate with!
To be honest, it is actually one of the best glasses