On July 18, pork traded at 948 yen per kilogram at the Tokyo Metropolitan Central Wholesale Market, the highest since records began in 2000. Additionally, according to major egg wholesaler JA.Z-Tamago. Co., the wholesale price of medium-sized chicken eggs in the Tokyo area was 328 yen per kg in July, significantly exceeding the July average of 224 yen from 2020 to 2024. Moreover, hiyashi chuka requires more preparation and cooking effort. While ramen typically uses about four ingredients, chilled Chinese noodles involves around 10. With rising labor costs, the manual tasks of evenly slicing cucumbers and char siu, and using 70 to 80 kg of ice daily to chill the noodles, are significant burdens. Bazoku manager Mitsutaka Mori reveals, "We can't easily stop because of our loyal customers who come every year, but hiyashi chuka costs two to three times more in terms of outlay and labor compared to hot noodle dishes, and the profit margin has significantly decreased."