When Personal Preferences Become Hiring Criteria

The recent debate over bringing iced coffee to a job interview gives employers a useful opportunity to examine how they interpret candidate behavior. A recruiter advised candidates interviewing in formal corporate settings to leave their drinks behind, suggesting that takeout coffee could make the meeting appear like another errand. The disagreement raises an organizational question: what would carrying a beverage into an interview help us predict about someone’s performance?

An interviewer may notice the cup and feel that it makes the entrance too casual. That reaction can seem minor until it enters the hiring discussion. Consider a hypothetical sequence: “The candidate arrived with coffee” becomes “They seemed casual,” which becomes “I’m concerned they won’t take the role seriously.” By the time the feedback is recorded as “lacks professionalism,” the observation has acquired a meaning it alone does not establish.

I think this is where organizations need to slow judgment down. An interviewer’s reaction can identify something worth exploring. Before it influences the decision, however, we need to understand what supports the interpretation and how it relates to the role's responsibilities.

The candidate may have brought coffee to stay alert, feel more settled, or continue their morning routine. None of those explanations is established by the cup itself, but neither is a lack of commitment. Considering alternatives helps an interviewer recognize what remains unknown. The next step is to examine whether the behavior affected the conversation or demonstrated something relevant to the work.

That distinction matters because interview feedback carries organizational authority. Once a concern enters the discussion, other decision-makers may rely on it without having witnessed the interaction. A broad label can travel farther than the details that produced it. “Unprofessional” may sound like a finding, even when the underlying evidence is a choice one interviewer personally disliked.

For HR and hiring leaders, this creates a decision-quality problem. If one interviewer interprets a behavior as confidence and another sees arrogance, their assessments may reflect different standards. The organization then has to reconcile judgments whose foundations were never made explicit. Agreement does not necessarily resolve the problem either. Several interviewers can share a preference without establishing that it tells them anything useful about the work.

Organizations therefore need more than consistency. A hiring criterion should have a defensible connection to what the role requires. Consistently applying an unsupported preference does not strengthen that connection.

This does not mean that professional behavior is irrelevant. Listening, respecting others’ time, following relevant instructions, and responding appropriately to a situation may be essential to performance. The organization’s responsibility is to describe those expectations precisely enough that interviewers can recognize meaningful evidence.

For example, imagine a candidate repeatedly interrupting a client during a work simulation. If understanding the client’s needs is central to the role, the interviewer can explain how the interruptions prevented the candidate from gathering necessary information. There is an observable behavior, an effect on the task, and a reason to investigate further. That explanation provides more substance than “They did not seem polished.”

You can apply the same discipline to less obvious concerns. Before giving an impression weight in the hiring assessment, I would connect three elements:

• Observed behavior: What specifically happened before we attach a label?

• Work relevance: Which responsibility or necessary behavior does it affect, and how?

• Supporting evidence: What else supports the conclusion, or what follow-up would help test it?

With coffee, “The candidate carried a drink into the room” establishes an observation. The connection to commitment remains uncertain. If the candidate repeatedly interrupted the discussion to handle the drink and missed questions as a result, the behavior to examine would be different. Even then, the assessment should describe what occurred and its relevance rather than jump immediately to a broad conclusion about the person.

This approach also makes hiring discussions more useful. Instead of debating whether someone “felt professional,” the group can examine the behavior, the proposed connection to performance, and the strength of the evidence. An interviewer can revise an initial interpretation without defending or abandoning their entire assessment of the candidate.

HR can support this by changing how interview feedback is captured. Asking interviewers to record observations separately from their interpretations makes the reasoning visible. When a concern is raised during a hiring discussion, a useful follow-up is: “What happened that led you to that conclusion, and which part of the role does it affect?” If the connection is unclear, the group can decide whether it needs more evidence or whether the concern should carry less weight.

Some expectations also belong in the preparation candidates receive. If beverages are prohibited for a practical reason in the interview setting, communicate it. If a presentation or client simulation requires particular conduct, explain the assignment. Making an expectation explicit gives candidates a fair opportunity to respond and gives interviewers a clearer basis for assessing that response. The organization remains responsible for determining whether the expectation serves a meaningful purpose.

The deeper opportunity is to make professional judgment explainable. Experience can help an interviewer notice something worth investigating, but the organization benefits when others can examine that judgment. A concern becomes more useful when we can trace it to an observed behavior and a responsibility the person will actually hold.

The coffee debate will eventually move out of the headlines. The practice it exposes deserves continued attention. Every hiring discussion gives an organization another opportunity to decide which impressions become criteria and what justification those criteria require.

If a preference can influence who gets hired, what evidence should we require before giving it that authority?