The phrase "a single sip of" is correct and usable in written English.
It can be used when referring to a small amount of liquid, typically in the context of drinking or tasting something.
Example: "After a long day, all I needed was a single sip of my favorite whiskey to unwind."
Alternatives: "one sip of" or "a small taste of".
He has said that a single sip of beer is a first step toward alcohol abuse.
Again, I appreciate the sympathy, but there are literally hundreds of people who had to call their "drinking days" to an early end and still somehow manage to enjoy the festive camaraderie of barlife without a single sip of alcohol.
Sometimes it only takes a single sip of Pimm's for my face to change color; other times I can do half a bottle of tequila before any visible symptoms appear.
Soon after this we all stomped back downstairs and sat at our desks in silence, seething at one another, morale completely shot, and I'm not saying a single sip of Magnum Tonic Wine mixed with Pumpkin Spice Latte syrup was the reason, but it was definitely the reason.
Again, I appreciate the sympathy, but there are literally hundreds of people who had to call an early end to their drinking days and still somehow manage to enjoy the festive camaraderie of bar life without a single sip of alcohol.
A... reasonably... priced... wine?" – baffled by the entire idea of paying for and drinking a unit of alcohol, and then they sit and settle into their chairs, and they wiggle their bottoms and get comfy, and they take a single sip of alcohol and say: ah.
The relevance of such measurements focusing on the evaluation of a single bite or sip is questioned.
More recently, Tijink et al (2006) also demonstrated that a single dose of 74 MBq I-L19-SIP caused a maximum reduction in FaDu tumour size at day 18.
Berndorff et al (2005) reported that a single injection of 74 MBq I-L19-SIP to F9 tumour-bearing mice resulted in a 10-day tumour growth delay and a median survival of 22 days; 13 days longer than that of control mice.
Two bottles later, I swallowed a tiny sip of the Four Roses Single Barrel, because the instructor called it "a beautiful, light, easy-drink".
