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Central Location Testing

Central location testing is perfect for products which require a controlled environment, something that we pride ourselves on delivering.


We work with you to ensure all stages of your  trial are perfectly designed to deliver the best results.

The Perfect Venue

Does the trial require special equipment? Refrigeration for products? Is the location suitable for our target consumers? Every trial goes through a requirement checklist to ensure layouts, locations and equipment are all ideally designed for that specific trial.

As well as our research facility, The White Rooms, based in St Albans we have a strong network of venues and venue providers. There hasn’t been a request we haven’t met yet.


Click here for more information on The White Rooms.

Test Conditions

What temperature should the product be served at? Is the venue ventilated well enough for the sniff test? Will testers see product branding at the venue that may cause bias thinking?

We understand that the details matter. They separate good from great. Give final outputs that extra Zing. 

With years of experience in running CLTs these are just some of the factors that will be considered when planning your CLT, so you don’t have to.

Test Set Up

Do products need blinding for the trial? A feedback survey scripted? Product or equipment procurement? Zest has it covered.

Zest is more than a fieldwork provider. We are your project management partner, doing all the heavy lifting so you don’t have to.

**Don’t worry, we’re equally happy to use your survey if you already have one


Every CLT is manged and delivered directly by your Senior Project Manager. This doesn’t just mean they will be responsible for setting things up from the comfort of their desk.


At Zest every trial is managed from set up to delivery by a senior Zest project manager, including on the day, in person trial management.

This is key to ensuring the smooth running of each trial, and allows the SPM to act quickly from a vantage point of knowing all the ins and outs of the project.

“Our experience of working with Zest is excellent. We have been very happy with the professionalism and friendliness of the team, and the high quality of the research participants. We look forward to working with Zest again on future studies.”

Rita Brophy, Research Director, SMS Research

Our CLT Work

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