Paula Brown, director of the Natural Health and Food Products Research Group at the BC Institute of Technology, shown in this undated handout image, is involved in testing of over 700 samples of kombucha from around Canada, the United States and one producer in Australia to determine if alcohol levels are above legal limits. THE CANADIAN PRESS/HO-British Columbia Institute of Technology *MANDATORY CREDIT*

B.C. site testing over 700 samples of kombucha for alcohol levels

Drinks with more than 1.1% alcohol must list it on the label

The popular fermented drink kombucha is considered a healthy beverage containing good-for-the-gut probiotics but the BC Centre for Disease Control is concerned some products may have higher-than-regulated levels of alcohol.

The centre is working with the BC Institute of Technology, which is testing the last of about 760 samples of the beverage.

Lorraine McIntyre, the centre’s food safety specialist, said the impetus for the research came partly from concerns that some kombucha products in the Maritimes may contain more alcohol than levels allowed by Health Canada or the province, where any amount of alcohol must be listed on labels.

The federal regulator requires beverages containing more than 1.1 per cent alcohol by volume to stipulate how much booze is in them, she said, adding beverages containing one per cent alcohol are not considered to be liquor in British Columbia and Ontario, though levels vary slightly by province. The allowable amount in the United States is 0.5 per cent alcohol by volume.

The samples that are being tested were collected in the Vancouver area from producers located in B.C., Alberta, Quebec, Ontario and the United States. One came from a producer in Australia.

The research was also prompted by issues in the U.S., where bottles of kombucha have been found to have more than the legal limit of alcohol, McIntyre said.

Alcohol is a normal byproduct of the fermentation process but levels can increase as kombucha products sit, especially if they’re not refrigerated, she said, adding consumers should know how much alcohol is present in the green- or black-tea based beverages that are infused with fruit, mint, ginger and other flavours.

“We really want consumers to make an informed choice so kombucha may not be the right beverage for everyone and particularly this isn’t a beverage you should feed to young children or if you’re pregnant and you want to avoid alcohol to protect your baby.”

The products being tested by the research group were collected by the centre’s food safety specialists and environmental health officers from regional health authorities who visited various places including grocery stores, restaurants, farmers markets and production facilities.

The centre is expected to report its findings at the end of the month.

Paula Brown, director of the BC Institute of Technology’s Natural Health and Food Products Research Group, said various methods exist to test the level of alcohol in non-alcohol beer or booze produced in a distillery but kombucha presents some challenges because it contains sugar, yeast, micro-organisms and possible additives.

“It’s not just water and alcohol in it. The bottles can have any number of flavourings and I’ve even seen bottles that have quinoa,” she said, adding the tea bases can contain chemical compounds that can affect the fermentation process.

Brown said a method developed by the research group to measure ethanol levels in kombucha production and during storage is being used as part of the study with the BC Centre for Disease Control.

The goal is to establish best practices for producing and properly storing kombucha to benefit both the industry and consumers, she said.

“From our research we know that time and temperature have an impact on the production of ethanol during storage. It’s a bit of a concern if products are coming from far way and you don’t know how they were transported, you don’t know how long it’s been since they were manufactured, you don’t know how long they sat around,” Brown said.

“Refrigeration can be variable and we don’t really now about refrigeration during transport but it can definitely have an impact.”

Hannah Crum, president and co-founder of Los Angeles-based Kombucha Brewers International, said a major retailer with stores in Canada pulled all of its kombucha off the shelves in the U.S. in 2010 after a finding of higher-than-legal alcohol levels though that did not involve an official government recall.

“It did help us to understand that there were aspects that we needed to address in terms of accurate testing processes,” she said.

Further concerns about alcohol levels since then have prompted the 400-member organization of brewers and suppliers to seek an accurate testing method from an international group that includes scientists who set standards for analysis of food and beverages, she added.

Crum said AOAC International is in the process of collecting data to precisely test kombucha but a viable method is likely years away.

“Some brands have indicated that they test their competitors’ kombucha and they find that sometimes products are above the half-a-per-cent (limit),” she said of levels allowed in the United States.

Crum said she is aware of the testing being done in British Columbia and is looking forward to the findings.

This report by The Canadian Press was first published Nov. 7, 2019.

Camille Bains, The Canadian Press

Just Posted

Jumbo saga reaches finale

A three-decade long disagreement comes to a close.

Province looking at steps to dissolve Jumbo resort municipality

Disincorporating municipality will likely require a legislative change, according to the province

Almost 20,000 parking tickets issued by Interior Health at hospitals in 2019

In 2018, pay parking in Interior Health hospitals totalled $5.3 million of their $2.2-billion budget

Ktunaxa, supporters celebrate protection of Qat’muk and the Jumbo valley

Speeches, acknowledgements and ceremonies mark an emotional gathering in Cranbrook

Former Waterside property to be rezoned?

Invermere residents supported rezoning Waterside property.

Victoria police arrest 12 anti-pipeline protesters supporting Wet’suwet’en

‘We are unarmed, they have guns,’ protesters chanted on Wednesday morning

Canadian public health agencies ramping up preparations in response to new virus

Health officials have said there are no confirmed cases of the emerging coronavirus in Canada

‘Naughty boy’: Monty Python star Terry Jones dies at 77

The comedian has been suffering from a rare form of dementia

Four things ‘not’ to do if you run into Prince Harry and Meghan in B.C.

Here is a list of some things you definitely should NOT do, according to the BBC

Harry and Meghan should cover their own security costs: NDP heritage critic

The prince, Meghan Markle and their eight-month-old son Archie are reportedly staying at a mansion near Victoria

Theo the 800-pound pig trimmed down and still looking for love on Vancouver Island

“He’s doing really well, lost quite a few pounds and can run now.”

Horgan unveils B.C. cabinet shuffle changes

Premier John Horgan has made three major changes to his cabinet

Dog reunited with Tofino owner, months after being taken from beach

Shannon Boothman ‘ecstatic’ at pet’s return after a tip leads to social media search

B.C.’s first ride-hailing app to launch in Tofino, Whistler in February

The Whistle! app will be available in Tofino on Feb.1 and in Whistler Feb. 6.

Most Read