When summer arrives in Japan, corn is one of the season’s most beloved vegetables. Sweet and versatile, it’s now even enjoyed raw in certain varieties — a refreshing treat that highlights its natural flavor. 

Beyond taste, corn is valued in Yakuzen for its health benefits, especially during Japan’s hot and humid summers. It helps the body release excess moisture, making it an ideal food to stay balanced in the heat. 

Corn silk, in particular, is well known for reducing water retention, and below I’ve shared a simple recipe for corn silk tea you can try at home.

Yakuzen Classifications
Nature – Neutral（平）
Channels – Spleen (脾), Liver (肝), Kidney (腎)
Flavor – Sweet (甘)

How does corn help you?

1. Clear body heat
2. Promote urination and reduce water retention
3. Improve spleen and stomach functions

Good for the following symptoms

1. Edema
2. Slow urine flow
3. Bloating stomach due to dampness
4. Dizziness due to dampness
5. Poor appetite
6. Summer fatigue

Corn Silk Tea Recipe

Step 1 - Wash the corn silk and dry it in the sun for a couple of days.
Step 2 - Put the corn silk (10g) and 500ml of cold water in a pot.
Step 3 - Simmer until the water becomes half the amount.

Cautions

It's very important to know about your body conditions before choosing foods.
Do not eat too much of particular foods at once.
Do not eat the foods you are allergic to.
There are foods to avoid if you are pregnant / have a disease. Ask your doctor before you start Yakuzen.