Answers / Loyalty programs
Do 'buy 9 get 1 free' stamp cards actually work in F&B?
Written by PEKO Team.Last updated: 05/24/2026.
Yes — when the reward is genuinely valued and the completion rate sits in the 18–30% band. Below 18% the program isn't motivating; above 35% margin collapses. PEKO's stamp dashboard shows the curve in real time.
Published: 05/24/2026
Stamp cards work when they create artificial momentum: the closer a guest gets to the reward, the more they accelerate visits (the 'goal-gradient effect'). For F&B this is documented in Vietnam, Indonesia, and the Philippines across coffee, bubble tea, and casual dining.
The metric that matters is completion rate — what share of started cards reach the reward. Below 18% the program isn't motivating enough (reward too far, too cheap, or invisible). Above 35% gross margin starts to suffer because too many guests are claiming.
Pick a reward worth chasing
A free drink the guest already buys regularly beats a discount. The reward should feel like a gift, not a markdown.
Show progress visibly
Stamps in the member app, on the receipt, and verbally at the counter. Invisible progress kills the goal gradient.
Cap card lifetime
60–90 days. Indefinite cards never get completed and never get abandoned — they just sit.
FAQ
Does PEKO track stamp completion?
Yes. The engagement overview dashboard surfaces per-campaign completion rate, time-to-complete, and the goal-gradient acceleration so you can see when guests are speeding up.
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