Spirits Masterclasses
Focused sessions that turn production knowledge into confident tasting and recommendation.
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Spirits education for modern hospitality
Know the spirit.
Lead the room.
Proof & Principle connects spirit law, raw materials, production, labels and sensory analysis into one structured learning system for bartenders, hospitality teams and serious spirits learners.
01 Learn02 Improve03 Inspire04 Repeat
Selected guides
Category guides.
Connected to the wider Library.
Start with a category, then follow its law, raw material, production and sensory links through the wider Library.
Origin, distillation & ageing
Cognac
Appellation, Charentais double distillation, oak maturation and the terms that matter on the label.
Raw materials, styles & maturation
Caribbean
Rum
Molasses and cane juice, fermentation, distillation, maturation and the major regional production traditions.
Law, production & sensory analysis
Scotch
Whisky
Legal category, malt and grain production, peat, distillation, maturation, blending and sensory analysis.
Agave law & production
Tequila
Protected origin, Blue Weber agave, hydrolysis, fermentation, distillation, class and label structure.
The Spirits Library
Study by spirit.
Follow by concept.
Choose a category when you need depth, or follow a production concept across categories. Each hub connects law, raw materials, fermentation, distillation, maturation, labels and sensory analysis.
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Whisk(e)y
Scotch, Irish, Bourbon, American Rye & Corn, Canadian and Japanese whisky are connected through one shared system.
Cane Spirits
Rum, rhum agricole, cachaça, clairin and the production traditions behind them.
Grape & Wine Spirits
Cognac anchors the current guide set, with grape-spirit law, distillation, maturation and label reading connected around it.
Agave & Mexican Traditions
Tequila provides the current deep guide to protected origin, agave, hydrolysis, fermentation, distillation and maturation.
Fruit Spirits & Eaux-de-vie
Fruit raw materials, fermentation, distillation and style are organised as one comparative route through eaux-de-vie.
Vodka & Neutral Spirits
Fundamentals and specialist chapters connect raw materials, fermentation, rectification, filtration, dilution, law and tasting.
Gin, Genever & Botanicals
Genever, Gin Fundamentals and Juniper & the Botanical Recipe connect cereal spirit, law, botanicals, extraction and tasting.
Training & masterclasses
Knowledge that performs under pressure.
Every session is shaped for the room, the team and the commercial reality of hospitality. The language stays clear, practical and connected to service.
Discuss a programmeHospitality Team Training
Clear, practical learning built around service language, guest confidence and commercial relevance.
Cocktail Development
Structured support for menus, flavour architecture and drinks that remain operationally sound.
Founder / Spirits Educator
Meet the founder
Rabei Zaitouna
A hospitality professional and spirits educator translating deep technical knowledge into confident, useful service.
Based in Dubai and shaped by years behind the bar, Rabei founded Proof & Principle to close the distance between theory and practice. His approach is precise, accessible and built around one belief: knowledge becomes valuable when people can actually use it.
Syrian spirits educatorDubai, UAELuxury bar operationsTeam leadership
Follow Rabei on Instagram
Professional qualifications
WSET Level 3 Award in SpiritsMerit
WSET Level 3 Tasting ExaminationDistinction
Edinburgh Whisky AcademyDiploma in Single Malt Scotch Whisky
For brands, venues & academies
Education can build more than knowledge.
Proof & Principle welcomes thoughtful collaborations across spirits education, team development, masterclasses, menu storytelling and educational content.
Brand education & advocacy
Clear, technically accurate education that helps brands communicate production, flavour and purpose with credibility.
Venue and team training
Tailored sessions that strengthen product knowledge, confident recommendations and consistent guest communication.
Masterclasses & guest sessions
Focused experiences built around a spirit category, production method or tasting theme for hospitality teams and guests.
Editorial content partnerships
Research-led educational content shaped for digital platforms, campaigns and hospitality audiences.
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