International Women's Collaboration Brew Day (IWCBD) is an annual event that takes place each year on International Women's Day (8 March). [1] The event gathers women brewers around the world who brew a beer around that year's theme. [2] It was established to raise awareness of women in the brewing industry, especially as beer brewmasters. It also networks women interested in brewing. [3]
From 2025, the event is organised by Women On Tap CIC, marking its return after a year hiatus with the theme UNITE SOCIETY. Brewers are encouraged to use the event to raise funds for, or donate to, women's causes. Commercial breweries are encouraged to commit to a minimum £100 donation to a non-profit women's organisation or group. [4] The Society of Independent Brewers (SIBA) is the campaign’s headline partner, with Wine & Spirit Education Trust (WSET) on board as an Education Partner, and additional sponsorship pledged from Simpsons Malt. [5]
The idea for the IWCBD came from Project Venus member, Sophie de Ronde, who reached out to the Pink Boots Society in 2013 to start a "unified brew day." [6] De Ronde wanted the day "to encourage women to brew together." [7] The day was meant to coincide with International Women's Day and would "raise awareness of women in the brewing industry and raise money for local charities and Pink Boots Society." [6] Brewing beer is a male-dominated industry and is "struggling with sexism and gender bias." [8] Another participant said, "I'd like to normalize the idea that women can and do work in the brewhouse along with other departments in a brewery." [9]
The first year, 2014, over 60 women in five countries brewed a pale ale called Unite. [10] In 2015, 80 women from eleven countries worked together to brew Unite red ale. [6] [9] In South Africa, Apiwe Nxusani-Mawela, helped organize the first IWCBD event in Johannesburg. [11] For 2016, the type of beer brewed was a gose. [12] By 2018, the number of participating female brewers had increased to 126. [13]