(Translated by https://www.hiragana.jp/)
Home-user test - Wikipedia

Home use tests (HUT) are product marketing tests performed in the consumer's home, contrary to central location tests. Home test are done in consumers’ homes when products are consumed over a length of time or when an authentic consumption environment is required (for example, where people may modify the product by cooking methods, adding other ingredients or using the product in a personalised manner). Typically, cleaning products, household goods, small electrodomestics, petfood and products, beauty and cosmetic products may all be tested in the home over a longer or shorter period of time. Data is collected and processed in the lab.


For more information on product testing in lab, home or hall see Attestia