Introduction:Luckin Coffee has once again teamed up with the popular internet IP "Line Friends" (线条小狗) to launch a collaborative campaign, bringing back last year’s fan-favorite drink, the Little White Pear Latte, while adding limited-edition metal pins and blind bag stickers. However, many customers found that the received merchandise exhibited issues such as scratches, air bubbles, or even missing logos on the pins, and some blind bag sticker packs had fewer items than advertised. This article details the common types of flaws in this collaboration merchandise, analyzes key points from consumer feedback, and offers advice on identification and rights protection.
Luckin Coffee and Line Friends’ annual collaboration kicked off this Monday, bringing back the highly praised Little White Pear Latte from last year. In addition to the classic “paper bag + cup sleeve + sticker” set, the campaign introduced two adorable new limited-edition metal pins, attracting a wave of fans to rush to purchase. However, as customers began receiving their physical items, quality control issues with the collaboration merchandise quickly became a hot topic of discussion.
From photos shared by customers, the most controversial items were the randomly included metal pins. These pins, which depict two dogs holding up Luckin Coffee cups, showed noticeable scratches and air bubble defects on some of them.The imperfections were even more visible under light, where surface unevenness became obvious.In some cases, the edges of the pins were poorly finished, affecting the tactile feel, and in certain instances, the area of the cup that was supposed to feature the brand’s deer head logowas strangely missing the iconic logo,leading netizens to dub these versions the “no-deer edition.”

Aside from the pins, the blind bag stickers newly added in this campaign have also received complaints. Officially, each blind bag pack should contain four different themed stickers, but some customers reported finding only three after opening the package, which did not match the promotional description. Many merchandise collectors expressed disappointment, saying they had hoped to collect cute designs through the collaboration, only to find themselves spending extra time sorting out defective items upon receipt, which greatly diminished the purchasing experience.
A customer who picked up their order in person revealed that in order to select pins in better condition, they asked the staff to show multiple physical samples, buteven after inspecting over six pins in a row, they couldn’t find a single one without flaws,and ultimately had to settle for a product with only minor imperfections. This phenomenon suggests there may be inconsistencies in store inventory quality control, and it is advised that customers inspect their items promptly upon receipt and keep their receipts.
Regarding the quality control controversy, online feedback centered around two main concerns: disappointment that Luckin has launched two consecutive Line Friends collaborations without improving the quality of the merchandise, and surprise that the brand made fundamental design errors such as omitting the logo. Many consumers emphasized that given the high popularity and pre-order demand for the Line Friends IP, higher standards should have been expected for the merchandise quality.
Industry professionals pointed out that common issues like scratches and air bubbles on metal pins may stem from insufficient cleaning of the die-casting molds or lapses in the surface treatment process, while missing logos indicate potential problems in design file management or the quality inspection stage during production. For the issue of blind bag sticker counts not matching what was advertised, it is recommended to retain purchase records and communicate with customer service to confirm the packaging specifications.
This incident highlights the quality control challenges behind the craze of collaborative merchandise. While creative collaborations can effectively boost a brand’s visibility,the actual precision of product manufacturing and the quality checks before products leave the factory are key to maintaining consumer trust.When participating in similar campaigns, consumers should not only focus on the appeal of the designs but also pay attention to whether the actual items received meet their expectations.
For those who have already purchased this collaboration merchandise and found noticeable defects, they can contact official customer service to request an exchange or inquire about resolution options.
The above content is compiled by CoffeeHunters, a coffee news website.