A public cupping is one of the highest-leverage events a specialty café can run. It introduces new customers to your coffee program, builds relationships with your most curious regulars, and — if you do it right — drives meaningful retail bag sales. Most cafés overcomplicate it. The good cuppings are simple, well-prepared, and on a regular schedule.

What a public cupping actually is

For the operator side: you're putting four to six coffees in identical bowls, brewing them all the same way at the same time, and walking eight to twelve attendees through tasting them side by side. The cupping protocol is borrowed from the buying-and-grading practice roasters use, but in a public-event context it's about education and discovery, not formal scoring.

The attendee experience: they smell the dry grounds, watch the brews bloom, break the crust, taste each cup, and discuss what they noticed with each other and you. The whole event runs 60-90 minutes.

Scheduling — when to hold it

Weeknight evenings (6:30-8:00 PM) and weekend mornings (10:00-11:30 AM) are the two formats that work. Don't host during your normal busy service hours — you'll fight your own bar for staff attention.

Frequency: monthly is the sweet spot. Less often and you don't build a regular following. More often and the same eight people show up to every one and you stop pulling new attendees.

Day of the week: Tuesday and Wednesday evenings work best because they don't compete with weekend social plans. Avoid Mondays (slow day for events) and Fridays (people have other commitments).

The coffee selection

This is the single most important decision you make. The good selections have a clear pedagogical thread; the bad ones are random.

Three formats that work:

1. Single origin tour. Four coffees from different origins — say Ethiopia (washed), Kenya, Colombia, and Guatemala — all roasted to similar profiles. Attendees learn what origin difference actually tastes like, separated from roast variable.

2. Process comparison. Four coffees from the same origin or similar origins, but processed differently — washed, natural, honey, anaerobic. Attendees learn what process does to a cup. This one teaches the most in the shortest time.

3. Roaster showcase. Four coffees from a roaster you work with closely. The roaster ideally attends or sends a green buyer. Attendees learn the roaster's perspective, which builds loyalty to both you and them.

Don't mix all three formats in one cupping. The cognitive load is too high for new attendees.

The setup

Equipment you need: cupping bowls or 200ml ceramic cups (one per coffee per attendee, plus four for you), cupping spoons (one per attendee), a kettle, a scale, a timer, hot water, paper cups for spit-rinse, and a cloth to lay out the bowls.

Layout: four to six coffees in a line per attendee station. Each coffee labeled with a number, not the origin — let attendees discover the differences before knowing what they're tasting. Reveal at the end.

The standard protocol: 8.25g of coffee per 150g water, brewed in cup. Steep four minutes. Break the crust at four minutes — attendees lean in and smell the steam released by breaking. Skim the surface. Wait until coffee is cool enough to spoon comfortably, usually around eight to ten minutes total. Taste.

Running the conversation

Most operators talk too much. The good cuppings are 70% attendees talking, 30% you. Your job is to facilitate, not lecture.

The questions that work:

"What do you smell in the dry grounds?"
"How does that change when we add water?"
"Which one is sweetest? Which is the most acidic?"
"What does the finish feel like — does it linger or disappear?"
"If you had to pick one to take home, which?"

The last one matters. End the cupping with each attendee choosing a favourite. That's the retail bag they'll buy on the way out.

Pricing and ticketing

Charge for it. Free cuppings get no-shows and casual attendees. A modest ticket price — $15-30 depending on your city — filters for people who actually want to be there and signals that the event has value.

What to include in the ticket: the cupping itself, a small pastry or snack, and either a discount on retail bags purchased that night or a 100g sample of one of the coffees cupped. The retail-bag attach rate is the actual ROI of the event.

Cap the attendance at 10-12 per session. Beyond that, the conversation breaks down and the brewing logistics get hard.

Promotion

Three channels, in order of effectiveness:

1. Your existing regulars. A sign at the register two weeks ahead, an Instagram story, and a word from your bartender to interested customers fills 60-70% of a monthly cupping. These attendees are also the highest-quality ones.

2. Discovery platforms. Post the event on Roasters from your café's operator dashboard. Specialty drinkers in your city see events posted by cafés they've saved or browsed. This is the single highest-leverage way to reach customers who don't already know about you.

3. Local press and newsletters. Sprudge Wire occasionally picks up notable events. Your city's food/lifestyle newsletters often cover them. Send a short pitch two weeks ahead.

The retail attach — making the event pay

A well-run cupping with 10 attendees should produce 4-7 retail bag sales that evening. At $18-25 per bag, that's $70-180 in retail revenue from a single event — on top of ticket revenue and the value of the customer relationships built.

The mechanic: after the cupping, attendees know exactly which coffee they like. Have the bags ready, priced, and clearly labeled at the door. Offer a small discount (10-15%) for the night only. Walk attendees through the workflow — they're primed to buy and the friction needs to be zero.

After the event

Send a follow-up to attendees within 24 hours. Three bullets: what you cupped, the standout for the group, and the date of the next cupping. Include the order link for the bags. The follow-up converts more retail sales than the event itself for a meaningful share of attendees.

Post your next cupping on Roasters

Operators with a claimed café profile can post events directly. Cuppings, workshops, latte art throwdowns, and launch parties show up to specialty drinkers in your city who've saved or browsed your café. Claim your café here if you haven't already.