Simon Spillane, a senior adviser for the Brewers of Europe organisation, says the
added cost to a half-litre will be more like 30 euro cents, and comes at a tough time for brewers.
"This is a real blow for the beer industry," he says.
"Across the EU we have already seen beer production fall by 6% and consumption fall by 8% since the start of the economic crisis."
Businesses in Belgium and Germany that trade with France are likely to be worst affected, he argues, as well as smaller family firms and microbreweries that focus on quality rather than quantity, though an amendment currently being discussed is aiming to exempt small independent breweries from the tax rise.
There could also be an impact on British breweries that export across the English Channel.
"Beer represents 10% of UK food and drink exports so it's clearly a key to economic recovery there," according to Mr Spillane.
"British companies export 28 million pints of beer to France every year and we need to keep the industry alive."
The number of Brits making the trip to Paris could also fall, he warns.
"The booze-cruise phenomenon is already less popular than it used to be five or 10 years ago, but we can expect travellers who make the journey over the channel to find higher prices than there were in the past."
Many French drinkers said they were resigned to the idea of higher prices.
"It will just be a few euros here and there, you won't notice really, even if you drink too much!" said Lea Rouge, from Paris. "I still don't agree with the policy though, it is yet another regulation that we don't need."
"I support the government asking people to contribute more," said Daniel Astrid, who was born in France but now lives in Canada.
"But you know you just have to be sure about what they are going to spend it on. They may say it is to help people but then go and spend it on weapons and whatever else they want."
The higher tax rate was agreed by France's National Assembly on Tuesday but it stills need final approval from the country's second chamber, the Senate, which is expected to vote on the policy soon.
There is unlikely to be tough opposition, as it is made up of a majority of Socialist politicians who support President Hollande.
So far there are no signs that the policy will be extended to the country's most beloved beverage - wine.