When you run a coffee and tea truck, speed matters, but so does staying calm behind the counter. One simple number helps you plan both: cups per hour. If you can estimate it from your crew size, you can staff smarter, set fair wait-time goals, and avoid running out of prep during a rush. At Matt’s Coffee Express, we use a few quick methods to get a solid estimate before an event starts. None of them needs fancy software. You just need basic timing, a clear view of who does what, and a little math. Below are four practical ways to estimate cups per hour, plus a quick field test you can do before service today to keep lines moving.
Quick terms we’ll use
- Cup: any single-served drink (hot or iced).
- Crew: people working the window, bar, prep, or register.
- Cycle time: how long one drink takes from start to handoff.
Use Task Timing For Each Coffee Drink Type
This method starts with a stopwatch and your real menu. Time the steps for your main drink groups, then turn those times into a rate. It shows where time goes: shots, milk, iced builds, lids, and payment.
Here are timing ranges many coffee trucks see with trained staff and a steady line (your results may differ by gear and layout):
- Espresso shot pull: about 25–30 seconds once the puck is set.
- Milk steaming: often 30–45 seconds for a 12–16 oz milk drink.
- Batch drip pour and lid: around 10–20 seconds per cup (after the coffee is brewed).
- Pour-over brew: commonly 3–4 minutes per cup if made one at a time.
How to estimate
- Pick 6–10 best-selling drinks.
- Time each drink end-to-end for 5 repeats.
- Use the middle value (not the fastest run).
Simple math
If a latte takes 75 seconds on average, one person focused only on lattes can produce about:
- 3,600 seconds per hour ÷ 75 = 48 lattes/hour
Build A Simple Crew Throughput Table Fast
Once you have a few drink times, turn them into a quick table that matches real crew roles. The trick is to stop thinking “one person makes one drink,” because most trucks split work. One person may take orders and payments, another may run espresso, and a third may handle drip, iced tea, and handoff.
Start by mapping your normal stations:
- Register/window: greeting, order, payment, and calling the drink.
- Bar: espresso, milk drinks, hot water for tea, and syrup.
- Cold/prep/handoff: iced drinks, canned items, lids, sleeves, napkins.
Make your table
- Choose a short time block, like 10 minutes.
- Estimate how many drinks each station can finish in that block.
- Multiply by 6 to get an hourly number.
Example station limits in 10 minutes (sample numbers):
- The register can process 20 orders (about 30 seconds each, with some tap-to-pay).
- Bar can finish 15 espresso-based drinks.
- Cold/prep can finish 18 non-espresso drinks.
Your cups per hour is not the sum. It’s the lowest station number—the line moves only as fast as the slowest step:
- In this example: 15 drinks per 10 minutes → 90 cups/hour
Now repeat the same table for 2-person, 3-person, and 4-person crews by changing who covers which station.
Apply Bottleneck Checks For Station Limits Now
Even with a strong crew, your equipment can cap your output. This method is a fast “can the hardware keep up?” check. It helps you avoid overpromising for big events when the espresso machine, grinder, or hot water tap becomes the limiter.
Common bottlenecks on coffee trucks
- Espresso group heads: If you have a 2-group machine, you can pull two shots at once. If each pull is ~30 seconds, that’s up to 4 shots per minute in ideal conditions. Real life is slower because you still have dosing, tamping, wiping, and purging.
- Grinder and puck prep: One grinder and one barista can only prep so many doses per minute without mistakes.
- Milk steaming wand(s): One wand can steam one pitcher at a time. If steaming averages 40 seconds and you need one pitcher per two drinks, that pace matters.
- Cup and lid handling: It sounds small, but fumbling lids during a rush adds up.
How to run the check
- Pick your busiest drink (often a latte).
- List the “must-do” machine steps and their time.
- Compare that to your crew plan.
If your barista can make 60 lattes/hour by skill, but your setup only supports 45/hour due to steaming or shot flow, your true rate is closer to 45/hour for that mix.
Factor Menu Mix And Rush Patterns Daily
Most events are not “all lattes” or “all drip.” The drink mix changes your cups per hour. A crowd that wants iced tea and cold brew moves faster than a crowd ordering double-shot cappuccinos with oat milk and extra foam.
This method uses a weighted average. It’s simple, and it helps Matt’s Coffee Express pick the right crew size for the kind of crowd.
Step 1: Group your menu
- Fast: drip coffee, hot tea from an urn, bottled drinks.
- Medium: iced tea built to order, cold brew with milk and syrup.
- Slow: espresso milk drinks, drinks with lots of custom changes.
Step 2: Assign average times
Use your timings from the first method. Example averages:
- Fast: 20 seconds
- Medium: 45 seconds
- Slow: 90 seconds
Step 3: Use a mix
Say an event mix is 40% fast, 35% medium, 25% slow.
Weighted time = (0.40×20) + (0.35×45) + (0.25×90)
= 8 + 15.75 + 22.5 = 46.25 seconds per drink
One “drink lane” at 46.25 seconds is:
- 3,600 ÷ 46.25 ≈ 77 cups/hour
Then apply your station limits from the crew table and bottleneck check to keep it realistic.
Quick Field Test To Verify Your Estimate
Paper estimates are helpful, but a short practice run will catch issues your math misses, like where cups are stored, how far someone walks for ice, or how long it takes to restock lids. This test is easy to do with the truck parked and a small set of supplies.
10-minute line simulation
- Set a timer for 10 minutes.
- One person acts as “customer” and calls orders from a short list (use your real best sellers).
- The crew works as they would at a live event: order, payment, make, and handoff.
- Track only completed handoffs.
What to record
- Total drinks served in 10 minutes.
- The mix (how many fast/medium/slow).
- Any stoppage over 10 seconds (no cups, no ice, grinder jam, milk refill).
Turn it into cups per hour
- Completed cups in 10 minutes × 6 = your test rate.
If your estimate was 90 cups/hour and your test run lands at 72, you now have a clear reason to adjust: maybe the register step is slow, or the bar area needs a tighter layout. Run the test again after one small change.
Schedule Your Next Mobile Coffee Truck Service
Estimating cups per hour is really estimating flow: people, steps, and gear working together. Use timing to get real drink rates, build a crew table to see station limits, confirm your equipment caps, then adjust for the drink mix you expect. Do a 10-minute test, and you’ll walk into service with a number you can trust. Planning an event? Reach out to Matt’s Coffee Express to book our coffee & tea and food trucks, and tell us your crowd size and menu goals. We’ll help you pick the right crew and pace for your day.