Do you feel that it is bitter if you eat raw vegetables (leaves) from the kitchen garden raw?
The true identity of bitterness is nitrate nitrogen.
The easiest way to understand is to cut a fresh lettuce and a white liquid will come out. That liquid is nitrate nitrogen.
It is a vegetable that was carefully grown in the kitchen garden. I want to eat deliciously without bitterness.
In such a case, there is a method of removing nitrogen.
Nitrogen removal is difficult in soil cultivation, but we will tell you that there is an easy way to do it in hydroponics.
The method is ...
Just change the fertilizer water to just 3 days before harvesting.
When leafy vegetables feel that there is no fertilizer with only water, they consume the body's pesticides (nitrate nitrogen) to supplement nutrition.
So, when you eat it, it's a mechanism that makes it delicious vegetables with no leaves.
Attention * (Non-nitrogen removal is recommended on days when sunny weather continues to allow photosynthesis.)
This is effective for all leafy vegetables, so why not try it if you are hydroponic.
（※Japanese is translated into English by translation software. I am sorry if it is strange English.）