Exquisite mold-free coffee.

The coffee beans we enjoy every day. Many of them are transported by ship over several months from distant countries like Brazil, Rwanda, and Ethiopia.

In fact, this "sea freight transport" is the biggest hurdle for mold growth on coffee beans. Why does mold proliferate in sealed containers? We'll explain the surprising reasons.

1. The terrifying phenomenon known as "container rain (condensation)"

Ships carrying coffee beans travel through tropical regions directly under the equator on their way to Japan. During this journey, a phenomenon called "container rain" occurs inside the containers.

• Drastic temperature changes: Intense direct sunlight during the day heats the inside of the container, but it rapidly cools down at night or due to the ocean's temperature.

• Condensation: Moisture in the air inside the container forms droplets on the cooled ceiling and walls, raining down onto the coffee beans.

This moisture breathes new life into the supposedly dry green beans, triggering an explosive proliferation of mold.

2. "Breathing" green beans and humidity

Before roasting, green coffee beans are still "alive." This means they are highly hygroscopic, absorbing and releasing moisture in response to their environment.

• Accumulation of humidity: The green beans absorb humidity from the sea air and moisture generated by temperature fluctuations inside the container like a sponge.

• The jute bag blind spot: While common "jute bags" are breathable, they also allow external humidity to pass through easily and, once wet, take a long time to dry. This becomes a hotbed for mold.

3. Sustained "high temperature and humidity" from crossing the equator

Mold is most active in environments with temperatures between 25°C and 35°C and humidity above 70%.

On the route to Japan, when passing near the equator, this "ideal habitat for mold" condition persists for several weeks to over a month. This prolonged stress increases the risk of producing invisible mycotoxins.

How coffee overcomes "sea freight risks"

While eliminating transportation risks is difficult, we ensure only clean beans through the following thorough management:

1. Careful selection of transport methods: We use multi-layer packaging with special materials (such as GrainPro) that block moisture and choose routes with as little environmental change as possible.

2. "Immediate inspection" upon arrival in Japan: Beans that have completed the harsh journey by sea to Japan are subjected to mycotoxin testing by a third-party organization. We scientifically check for mold growth during transport.

3. Thorough temperature and humidity controlled warehousing: The storage location after arrival also maintains a low-temperature, low-humidity environment 24 hours a day to prevent mold activity.

Summary: Has your cup of coffee completed a harsh journey "unscathed"?

Before coffee beans arrive in Japan, they undergo trials of humidity and temperature beyond our imagination. "Inexpensive beans" often increase the risk of mold by cutting these shipping costs.

We continue to prove "mold-free" because we select only "miracle beans" that have survived the harsh environment of sea travel and arrived in a truly clean state.

Experience a pure cup that is gentle on your body and mind, and savor the "effort to protect" behind it.