Surge in "Leftover Bread" Due to Rainy Season and Heatwaves; May-June Sees 1.4 Times More Bread Waste
Quagga LLC, operating the bread mail-order and leftover bread reduction service "rebake," is selling special large-capacity sets for a limited time in 2026 to reduce the surge in unsold bread caused by the rainy season and heatwaves. The amount of leftover bread increases by 1.4 times during May-June compared to other periods, aiming to reduce waste.
📋 Article Processing Timeline
- 📰 Published: May 13, 2026 at 02:21
- 🔍 Collected: May 12, 2026 at 17:32
- 🤖 AI Analyzed: May 12, 2026 at 20:44 (3h 12m after Collected)
## Overview
Quagga LLC (Headquarters: Sumida-ku, Tokyo), which operates "rebake," a mail-order bread and leftover bread reduction service, will once again sell its popular "Large Capacity Sets" for a limited time in 2026 to reduce the increase in leftover bread (unsold bread) during the rainy season.
Bakeries nationwide have expressed concerns about the rainy season and intense heat.
- "Rainy days during a heatwave are the most troublesome pattern."
- "Recent rainy seasons have severe torrential downpours, leaving a lot of bread unsold."
- "We feel a sense of crisis."
Surveys conducted by rebake among bakeries and users nationwide revealed that customer traffic at bakeries decreases by 30-40% during the rainy season.
Furthermore, the amount of leftover bread generated in May-June during the rainy season increases by approximately 1.4 times compared to other periods.
By selling "Large Capacity Sets" containing over 40 pieces of leftover bread per box, rebake delivers bread to bread lovers and saves leftover bread from being discarded.
Leftover bread unsold in stores and frozen
The amount of leftover bread in May-June is 1.4 times the usual amount.
rebake, a bread mail-order service, allows over 1,000 bakeries nationwide to sell bread, primarily focusing on "leftover bread" that is likely to go unsold and be discarded in stores.
Through our interactions with many bakeries, we have received numerous comments from them about bread not selling well during the rainy season.
Voices from bakeries
- "The rainy season and summer heat are very tough times for bakeries. We hope to develop stories that make people want to eat bread even in summer, or how to enjoy delicious frozen bread."
- "We want to emphasize that leftover bread increases during the rainy season."
Measuring the amount of leftover bread generated at bakeries registered with rebake, it was found that from May to June, considered the rainy season, approximately 1.4 times more leftover bread is generated compared to other periods.
Leftover bread remaining unsold after closing
Customer traffic decreases by 30% during the rainy season. Reasons why the rainy season is a major enemy for bakeries
Factor 1 for decreased customer traffic during the rainy season: Rain
Survey results
- Bakeries feel that customer traffic decreases by an average of about 30% during the rainy season.
- A consumer survey showed that 40% of people refrain from going to a bakery if it's raining.
Bakeries with dwindling customer traffic due to rain
A survey conducted from April to May last year targeting 100 stores participating in rebake revealed that bakeries nationwide experienced an average 30% decrease in customer traffic during the rainy season.
On the other hand, past consumer surveys showed that many people avoid going to bakeries if it's raining. In a survey conducted by rebake among 100 users, 80% of people said they would avoid going to a bakery depending on the weather, and more than half of them said they would avoid it if it was raining. This indicates that 40% of the total population tends to refrain from going to a bakery if it's raining.
Factor 2 for decreased customer traffic: Heat
Survey results
- A 2023 survey showed that 37% of people reduced their visits to bakeries due to high temperatures in the summer of that year.
- The forecast for 2026 predicts that the proportion of days with higher-than-average temperatures from the rainy season to summer will be over 50%.
June 17th last year, when central Tokyo recorded approximately 34.8 degrees Celsius. The scene at a certain bakery around 5 PM on that day.
In addition to fewer people due to rain, "heat" is another major adversary for bakeries. In recent years, temperatures during the rainy season have been rising, making it an even more challenging period for bakeries due a double punch of rain and heat.
Heat is a very significant reason for the decline in customer traffic to bakeries.
According to a survey conducted by our company among 100 rebake users in early August 2023, 37% of respondents said they reduced their visits to bakeries that summer due to high temperatures.
According to the "Three-Month Weather Outlook for Japan (May-July)" announced by the Japan Meteorological Agency on April 21st, the proportion of days with higher-than-average temperatures from May to July this year is expected to be over 50%.
The average temperature for May, June, and July in 2023 was 23.6 degrees Celsius, and the average temperature for the corresponding period has been rising in 2024 and 2025. This means that in 2026, when higher-than-average temperatures are expected, a similar or even greater number of people than in 2023 may hesitate to visit bakeries due to the heat.
Three-Month Weather Outlook: https://www.data.jma.go.jp/cpd/longfcst/kaisetsu/?term=P3M
Monthly average temperatures for 2023: https://www.data.jma.go.jp/st
Quagga LLC (Headquarters: Sumida-ku, Tokyo), which operates "rebake," a mail-order bread and leftover bread reduction service, will once again sell its popular "Large Capacity Sets" for a limited time in 2026 to reduce the increase in leftover bread (unsold bread) during the rainy season.
Bakeries nationwide have expressed concerns about the rainy season and intense heat.
- "Rainy days during a heatwave are the most troublesome pattern."
- "Recent rainy seasons have severe torrential downpours, leaving a lot of bread unsold."
- "We feel a sense of crisis."
Surveys conducted by rebake among bakeries and users nationwide revealed that customer traffic at bakeries decreases by 30-40% during the rainy season.
Furthermore, the amount of leftover bread generated in May-June during the rainy season increases by approximately 1.4 times compared to other periods.
By selling "Large Capacity Sets" containing over 40 pieces of leftover bread per box, rebake delivers bread to bread lovers and saves leftover bread from being discarded.
Leftover bread unsold in stores and frozen
The amount of leftover bread in May-June is 1.4 times the usual amount.
rebake, a bread mail-order service, allows over 1,000 bakeries nationwide to sell bread, primarily focusing on "leftover bread" that is likely to go unsold and be discarded in stores.
Through our interactions with many bakeries, we have received numerous comments from them about bread not selling well during the rainy season.
Voices from bakeries
- "The rainy season and summer heat are very tough times for bakeries. We hope to develop stories that make people want to eat bread even in summer, or how to enjoy delicious frozen bread."
- "We want to emphasize that leftover bread increases during the rainy season."
Measuring the amount of leftover bread generated at bakeries registered with rebake, it was found that from May to June, considered the rainy season, approximately 1.4 times more leftover bread is generated compared to other periods.
Leftover bread remaining unsold after closing
Customer traffic decreases by 30% during the rainy season. Reasons why the rainy season is a major enemy for bakeries
Factor 1 for decreased customer traffic during the rainy season: Rain
Survey results
- Bakeries feel that customer traffic decreases by an average of about 30% during the rainy season.
- A consumer survey showed that 40% of people refrain from going to a bakery if it's raining.
Bakeries with dwindling customer traffic due to rain
A survey conducted from April to May last year targeting 100 stores participating in rebake revealed that bakeries nationwide experienced an average 30% decrease in customer traffic during the rainy season.
On the other hand, past consumer surveys showed that many people avoid going to bakeries if it's raining. In a survey conducted by rebake among 100 users, 80% of people said they would avoid going to a bakery depending on the weather, and more than half of them said they would avoid it if it was raining. This indicates that 40% of the total population tends to refrain from going to a bakery if it's raining.
Factor 2 for decreased customer traffic: Heat
Survey results
- A 2023 survey showed that 37% of people reduced their visits to bakeries due to high temperatures in the summer of that year.
- The forecast for 2026 predicts that the proportion of days with higher-than-average temperatures from the rainy season to summer will be over 50%.
June 17th last year, when central Tokyo recorded approximately 34.8 degrees Celsius. The scene at a certain bakery around 5 PM on that day.
In addition to fewer people due to rain, "heat" is another major adversary for bakeries. In recent years, temperatures during the rainy season have been rising, making it an even more challenging period for bakeries due a double punch of rain and heat.
Heat is a very significant reason for the decline in customer traffic to bakeries.
According to a survey conducted by our company among 100 rebake users in early August 2023, 37% of respondents said they reduced their visits to bakeries that summer due to high temperatures.
According to the "Three-Month Weather Outlook for Japan (May-July)" announced by the Japan Meteorological Agency on April 21st, the proportion of days with higher-than-average temperatures from May to July this year is expected to be over 50%.
The average temperature for May, June, and July in 2023 was 23.6 degrees Celsius, and the average temperature for the corresponding period has been rising in 2024 and 2025. This means that in 2026, when higher-than-average temperatures are expected, a similar or even greater number of people than in 2023 may hesitate to visit bakeries due to the heat.
Three-Month Weather Outlook: https://www.data.jma.go.jp/cpd/longfcst/kaisetsu/?term=P3M
Monthly average temperatures for 2023: https://www.data.jma.go.jp/st