A curated guide to restaurants that take water seriously — verified on site, tap by tap, by a water professional. Free for diners.
See the directoryPhoenix water is hard, and most restaurants serve it straight from the tap. A few don't.
The Oasis Guide is a directory of Phoenix-metro restaurants serving clean water — purified at the bar, in the ice, in the coffee, sometimes throughout the whole kitchen. Diners who care about water quality can find them. That's it.
Every restaurant on the directory has been visited in person and tested with calibrated meters at every customer-facing tap: bar, ice machine, drinking-water station, kitchen. The TDS and pH readings are published on the listing — no claims you can't verify, no awards you can't see the receipts for.
The guide is free for diners and free for restaurants. There's no paid placement on listings, no sponsored tiers. If a restaurant earns Distinguished, it's because the water at the kitchen, the bar, and the ice machine all came back clean.
Each tier is earned by what was actually measured. Restaurants can move up as they invest in better water.
Purified drinking water and beverages. Tap water for cooking and ice. The "we take water seriously" floor.
Purified drinking water, beverages, ice, and cooking water. Kitchen and bar both clean.
Whole-restaurant purification at point of entry. Every tap, every appliance, every sink. The unicorn.
Listings appear on the map once verified. The first restaurants are being tested now.
Free baseline listing. Free on-site water test. Founding restaurants keep a permanent featured spot.
No fee, no contract, no exclusivity. We test in person and publish the readings. The tier you earn is the tier you display — no pay-to-tier.