The Toronto food scientists who decided vinegar deserved to be treated like wine — and built a 3,000-store pantry brand around it

The basement that tested 500 vinegars

The founding story of Acid League is unusual for a CPG brand because it starts in a research environment rather than a kitchen. Allan Mai and Cole Pearsall both came out of the University of Guelph food science program, one of the strongest applied food programs in Canada, and they approached their first product the way a lab team approaches a problem: by running iterations. The Toronto basement where they set up shop in 2019 became, in effect, an experimental vinegar lab. The team has publicly described the period as a 500-plus prototype process, the kind of disciplined formulation work that is common in beverage and wine but rare in pantry CPG.

What they were trying to fix was a real problem hiding in plain sight. Most consumers buy vinegar once or twice a year, use it to clean a kettle or boil eggs, and forget it exists. That is a fine outcome for a 99-cent commodity product but a strange one for an ingredient that, in serious cooking, sits next to oil and salt as a primary flavour lever. The Acid League hypothesis was that there was an audience for vinegars made with the same intention as small-batch wine — slow-fermented from real fruit, minimally filtered, complex enough to dress a salad and finish a sauce. The 500 iterations were the work of figuring out what that actually tasted like.

The first commercial line — Living Vinegars — launched into specialty retail and DTC in 2020. By the time Strategy magazine covered the brand in 2022, the product had moved into mainstream grocery and the founding team was already working on the next category extension.

Forbes 30 Under 30 and a $4.8M Series A

Acid League raised a $4.8 million Series A led by InvestEco and BrandProject, two firms with deep CPG operating experience in Canada. The round funded a deliberate expansion past vinegar into adjacent pantry categories: hot sauces, salad dressings, shrub syrups, and most importantly Wine Proxy — a non-alcoholic wine alternative built from verjus, tea, fruit juice, vinegar, and botanicals. The Proxy line landed in the middle of the sober-curious wave and earned editorial coverage in Bon Appetit, Eater, and the New York Times.

In December 2023, co-founder Cole Pearsall was named to the Forbes 30 Under 30 list in the Food and Drink category, citing the brand's category reinvention work and rapid US distribution growth. The University of Guelph published its own news feature on the recognition the same month. The Forbes selection is the kind of third-party signal that converts retail buyers and accelerates placement conversations — and in the year that followed, Acid League expanded into Costco Canada, Walmart Canada, and additional Loblaw banners.

By 2026 the brand reports 3,000-plus stores across Canada and the United States. The Canadian retail mix is the one most other early- stage CPG brands would design if they could: Loblaws and Whole Foods anchor specialty positioning, Costco Canada drives velocity at large pack sizes, Walmart Canada provides national reach, and Instacart Canada threads through all of it for same-day delivery.

What is actually in the lineup

The current Acid League lineup at acidleague.com/collections/all covers seven product lines: Living Vinegars (the originating SKU family, including Rose, Champagne, and Black Garlic expressions), Wine Proxy (non-alcoholic wine alternative in multiple varietals), Hot Sauce, Salad Dressings, Shrub Syrups, Cocktail Kits, and Lil Croutons. Several of these lines are co-formulated — the same fruit and fermentation work that produces a vinegar feeds the shrub or cocktail kit on the next shelf.

The Rose Vinegar 375 ml SKU is the flagship for Canadian retail. It is listed on Instacart Canada through 84 retailer locations in the Toronto market area alone, including Loblaws, Whole Foods, Costco Canada, Metro, and Walmart Canada. The product itself is pink, floral, lightly fermented, and built to be used finely — a few spoonfuls in a vinaigrette, a marinade for fish, a deglaze on a sauté pan. It is the kind of SKU that does not need a sales pitch once it is on a serious cook's shelf, which is the entire theory of the brand condensed into a 375 ml bottle.

Wine Proxy is the piece of the lineup that demonstrates the broader insight. The category move from vinegar to non-alcoholic wine looks unrelated until you understand that both are about fermented or partially fermented juice products built for the dinner table. Acid League is positioned as a pantry brand for people who care about what they cook and what they drink, and the Proxy fits inside that world the same way a finishing vinegar does. That is the Acid League playbook visible in product form.

How Acid League stacks up in the pantry aisle

The competitive picture for Acid League touches both vinegars and non-alcoholic beverages. Here is how the options line up in Canadian retail:

Formats and sizes reflect each brand's standard flagship SKU per publicly available product listings. Retailer availability reflects Canadian market presence as of May 2026.

What this table makes clear is that Acid League is the only brand in the comparison with meaningful national distribution that spans both the vinegar and the non-alcoholic categories. Bragg is the commodity reference point — strong velocity, no premium pricing power, no story. Maille is the legacy European import. Surely and its peers are the US non-alcoholic competition with limited Canadian retail. Sobrii (Maple Made #002 in our brand-breakdown series) is the Canadian non-alcoholic spirit equivalent. Acid League is the brand sitting across two of those columns at once, anchored by national Canadian retail.

The founders as the proof of concept

The Acid League founders have stayed operational throughout the scale-up, which is unusual at this stage. Cole Pearsall is publicly associated with the brand's positioning and product development; Allan Mai with the food science and formulation. Both are still credited on the company's public materials. The University of Guelph success story page on the brand confirms the same operational continuity. Founder-led at Series A is common. Founder-led at 3,000 stores across two countries is not.

The Forbes 30 Under 30 selection is the externally legible signal of what the brand has accomplished. Lists like this matter less for consumer attention than for retail buyer credibility — a brand that is in Forbes is a brand that buyers feel comfortable putting on a shelf in a category they previously thought of as commodity. That single credential has done meaningful work in compressing the time from pitch to placement for Acid League over the last two years.

Where the brand lives online

Acid League's primary social presence is on Instagram at @acidleague. The brand uses the account for product education, recipe inspiration, and behind-the-scenes content from the Toronto development lab. The visual language is editorial rather than promotional, which fits the audience the brand has built: home cooks who treat the pantry as a place where the food gets interesting rather than just stocked.

What the press has said

Acid League has been profiled across both Canadian trade media and US consumer outlets since the Forbes selection. Here are the primary placements worth reading:

Where to actually buy it

Each link below goes directly to an Acid League product page or a retail listing — not the homepage — so you can find it without hunting:

For the full store list and product range, visit acidleague.com.

Frequently asked questions

Bottom line

The category most consumers ignore is exactly the one Acid League decided to take seriously, and the payoff has been a Series A, a Forbes 30 Under 30, and 3,000-plus stores across two countries within six years of starting in a basement lab. The genuinely interesting move was not the first vinegar — it was the bet that the same approach that worked for vinegar would work for the non-alcoholic wine category and the rest of the pantry. The Acid League playbook is now visible across seven product lines and four retail channels, and the brand is still founder-led. If you are in Canada, the Rose Vinegar on Instacart Canada is the fastest way to understand what they have built.