Lemon cake has become a major trend in Japan, leading to the opening of specialty shops in Tokyo and new product releases nationwide [1, 2, 3].

This surge in popularity reflects a broader shift in the Japanese sweets industry toward flavors with a distinct acidic accent. Industry experts said that the demand for tartness has been a growing trend over the last two to three years [1, 5].

In Tokyo's Ginza district, dedicated lemon cake boutiques have emerged to cater to this demand [2, 3]. The trend has also reached mass-market retail. FamilyMart began selling lemon cakes on April 21, 2024, priced at 160 yen [1, 4].

Major confectionery brands are expanding their portfolios to include the flavor. Fujiya introduced a lemon cake version of its Country Ma'am cookies for 260 yen [1]. Additionally, Marunaga Seika released a lemon cake-flavored dessert in its "Aisumanju" ice cream line, retailing for 237 yen [1].

"Across the entire sweets world, there is a strong demand for snacks with an accent, and acidity is one of those elements," Yutaro Sakai said [1].

Other experts said the success of the trend is due to the appeal of a refreshing taste that attracts people of all ages, combined with a "retro" aesthetic that consumers find charming [3].

While some reports indicate specialty shops are already active in Ginza, other sources suggest the first permanent Tokyo store was slated for Oct. 18, 2025 [2, 3]. Regardless of the specific opening dates, the variety of formats, from frozen treats to convenience store pastries, indicates a wide market penetration [1].

“"Across the entire sweets world, there is a strong demand for snacks with an accent, and acidity is one of those elements,"”

The rise of the lemon cake trend illustrates a strategic pivot by Japanese food manufacturers toward 'retro-modern' aesthetics and flavor profiles that balance sweetness with acidity. By deploying the flavor across multiple price points and formats — including luxury boutiques, convenience stores, and frozen desserts — companies are attempting to capture both high-end specialty shoppers and mass-market consumers simultaneously.