Assuming I Was Like Most Grandmas Was Your First Mistake Shirt! The more we learn about the Cava bubbling, the more we will see similarities with French Champagne. In particular, many Cava bottles are of the same quality and style as high-end Champagne bottles but are much cheaper. Learn more about the production methods, styles and varieties of Spanish sparkling wine from the article below. Most Cava effervescent in the market apply the method of immersion in the grapes in about 9 months. This is what makes wine quality comparable to French Champagne.