Even if it is the same producer and vintage, you can be sure that the bigger the bottle, the better the wine in it. The reason is simple. Wine is known to need oxygen for development. Too much air means rapid aging, and being without air means the end of life and development. The wine breathes through the cap of the bottle, which is made from the bark of the evergreen cork growing in the Mediterranean. Larger bottles of wine have slower access to air because the diameter of the mouth of the bottle and the proportion of wine in the bottle are different from those of a regular bottle. Thus, the wine breathes and matures more slowly in a large bottle, ie its aging trajectory is longer.