Every year, someone publishes a trend report about what people are drinking. By the time it lands in your inbox, bartenders have already moved on — they get feedback every shift, in real time, from real people paying real money.

If a customer pulls a face, a good bartender adjusts. If the same flavour keeps coming up in requests, they start experimenting. If something consistently lands, it ends up on the next menu. It's consumer research, done nightly, without a methodology section.

When we visited high-end bars in London last month, we weren't looking for what was already in the reports. We were looking at what bartenders were actually reaching for. Asian ingredients — yuzu, shiso, sake-based modifiers — weren't speculative inclusions. They were standard. Umami and savoury profiles weren't emerging. They were already there, replacing the sweeter builds that used to dominate.

None of that had fully made it into mainstream industry conversation yet. Bartenders had already done the testing.

They also have no incentive to be trendy for its own sake. They have an incentive to make drinks people enjoy and come back for. That's a more honest filter than most research processes.

On World Bartender Day, that's worth remembering. The best intelligence in this industry is often standing behind a bar at 11pm on a Tuesday, quietly working out what comes next.

Written by: Michael Allingag, Content Producer