Wines produced by her colleagues are often taken aback by overseas drinkers.
Ms Mezacasa says that clients are surprised by the quality when they buy the first bottle of wine.
The second bottle they buy is confirmation that we are making top-quality wine.
Most people associate Brazil with wine, not the other way around. It's too hot and humid to grow vines in a lot of the country.
Down in the far south of Brazil, near the borders of Argentina and Uruguay, the weather is much milder. There are more than 1,000 wineries in Brazil and it is located in the state of Rio Grande do sul.
According to the international organisation of vine and wine, Brazil produced 3.6 million hectolitres of wine last year. It is enough for a good party, but it is not as big as the wine world.
Italy made 50.2 million hecto litres in 2021, while France made 38.6 million. Argentina has the largest winemaking sector in South America with over 12 million hectolitres.
Brazil is trying to get wine fans around the world to try its bottles. Only 2% of its production is exported.
Rafael Romagna is the manager at Wines of Brazil.
The Brazilian Union of Viticulture set up his organisation in 2004 to work with the government to introduce Brazilian bottles to wine fairs and trade shows.
Wines of Brazil would handle overseas promotion for all of the Brazilian wineries. A Brazilian winery wouldn't be able to afford the costs alone to attend these events.
Wines of Brazil enrolls Brazilian wines in blind tastings with positive results." People are surprised when they find out they have tasted a Brazilian wine, and more than that, a product with high quality, because our country is not recognised as a producer.
Ms Mezacasa says that it's important to build up an export business. There is a study needed to determine if a product is well-received by overseas clients.
Brazil has developed a specialism for sparkling wines made the same way as champagne and their focus is mostly on reds.
She says they like to focus on sparkling wine.
More than 20 countries, including China and Japan, now receive Aurora's wine. The winery was set up in the 1930s and is still owned by some 1,100 families who all grow their own grapes.
A partner at a Brazilian winery says that the country's hosting of the World Cup and Olympics boosted wine exports.
He agrees that it's important to take your time to build up overseas demand.
It is a long term project. It is not an adventure of someone trying to export once. Brazilian wine has evolved a lot, not only in terms of quality, but also in terms of commercial viability.
Wine getting good scores at international professional tastings is what drives overseas sales at a third Brazilian winery. This makes buyers notice.
Wineries in Brazil now produce wines at different price points. It's very specific because some countries prefer more expensive wines while others prefer cheaper ones.
What do wine experts think of Brazil's wines?
Evan said that the quality can be very high. "While Brazil may be a new participant for many on the global wine stage, once people try the wines they are quite pleasantly surprised and delighted."
The master of wine says that the problem for Brazilian winemakers is that overseas drinkers don't like to try new things.
There's nothing to say Brazil can't find a niche in the UK market, but there are some open minded importers who could champion it.
It would have to be a compelling price, quality level or signature wine style like New Zealand sauvignon blanc or Argentine malbec to get real traction. Brazil's sparkling wines are good, but why is a champagne, prosecco or cava drinker often opting for Brazilian bubbles?
Ms Mezacasa wants British drinkers to try Brazilian wine.
Brazil is relatively unknown when it comes to wine. That's what makes people pay attention.
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