The best low-cost cava of 2021: Guilera Brut Nature Reserva. One of the best value sparkling wines of all those made in our country. A cava to fill the trunk so that you can eventually fill the pantry, just like in the old days. A cava to fill your glass during an appetiser, where you have to fill the time while you wait for the meal to finish cooking. A cava, in short, to fill a table with joy and pleasure, as that is also what the art of drinking cava is all about: knowing that bubbles can be solemn and emotional, of course, but without forgetting that bubbles are specialists in filling us with happiness. Do you agree?