President Donald Trump on Friday slammed France for enacting a 3 per cent tax on U.S. tech companies like Amazon, Facebook and Google and threatened to tax French wines in return.

'France just put a digital tax on our great American technology companies. If anybody taxes them, it should be their home Country, the USA. We will announce a substantial reciprocal action on Macron's foolishness shortly. I've always said American wine is better than French wine!,' he wrote on Twitter Friday morning.

And that afternoon he told reporters in the White House he was considering a tariff on French wines as part of that 'retaliation.'

'I might. France has put tariff on American companies. I might,' he said. 'Wrong. Wrong thing to do. They should not do that.'

Trump does not drink but does own a winery in Virginia.

'I've always liked American wines better than French wines, even though I don't drink wine,' the president said.

'I just like the way they look,' he added.

President Trump slammed France for enacting a 3 per cent tax on U.S. tech companies and then he insulted their wine

French President Emmanuel Macron signed the measure into law this week

'We tax our companies. They don’t tax our companies,' he said of France's move.

'I told them don’t do it because I’ll tax your wine,' he added. 'So, yeah, we’re working on that right now.'

On Wednesday, French President Emmanuel Macron signed into law a 3 per cent tax on tech companies with a global revenue of about $845 million or more - which would apply to companies like Facebook, Google and Amazon.com.

The French expect to collect $563 million in revenue from its tax.

The White House doubled down on its criticism by issuing a statement slamming France for hitting American companies.

'The United States is extremely disappointed by France's decision to adopt a digital services tax at the expense of U.S. companies and workers. France's unilateral measure appears to target innovative U.S. technology firms that provide services in distinct sectors of the economy,' said White House spokesman Judd Deere.

'The Trump Administration has consistently stated that it will not sit idly by and tolerate discrimination against U.S.-based firms. The U.S. Trade Representative has already launched a Section 301 investigation into France's digital services tax, and the Administration is looking closely at all other policy tools,' he added.

It's unclear why the president added the wine insult to his tweet given the French tax doesn't involve wine although it's possible he was hinting at what could be the target of a his 'reciprocal action.'

An American retaliation in the form of taxes on French goods could put the United States in yet another trade war.

The president owns the 227-acre Trump Winery near Charlottesville, Va., which his son Eric Trump took over running after Trump entered the White House.

Trump bought the property in April 2011 and it produces 36,000 cases of wine per year.

American tech companies have come under target in Europe and have been accused of being monopolies.

Trump had ordered an investigation into the French tax while it was making its way through the French legislature - before Macron signed it into law.

Trump winery near Charlottesville, Va.

Trump bought the winery in April 2011

The winery produces 36,000 cases of wine per year

In a statement Wednesday, U.S. Trade Representative Robert Lighthizer said the U.S. would investigate whether the French tax 'is discriminatory or unreasonable and burdens or restricts United States commerce.'

The French said they would decide their own taxes.

'France is a sovereign nation that decides its own tax rules. And this will continue to be the case,' French finance minister Bruno Le Maire said a few weeks ago when the U.S. warned France not to pass the tax into law.

Both Lighthizer and Treasury Secretary Steve Mnunchin called Le Maire ahead of a vote in the French Senate to warn him America would investigate such a tax.

Amazon.com, whose owner Jeff Bezos is a frequent target of Trump's Twitter fury, praised the administration on Wednesday for examining the issue.

'We applaud the Trump Administration for taking decisive action against France and for signaling to all of America's trading partners that the U.S. government will not acquiesce to tax and trade policies that discriminate against American businesses,' the company said in a statement.