Answer

Traditionally, Jains do not eat potatoes, even if they are grown through aeroponics.

Explanation

In Jain Dharma, potatoes are avoided because they are classified as root vegetables. Root vegetables are generally avoided because:

• They involve harm to many tiny living beings in the soil.
• The plant itself is destroyed when the root/tuber is taken.
• They are believed to contain many subtle life forms.

Even if potatoes are grown without soil through aeroponics, they still remain a tuber/root-type vegetable. So from a traditional Jain dietary viewpoint, they are still avoided.

Spiritual Understanding

The Jain food discipline is not only about visible harm, but also about cultivating ahimsa, restraint, and sensitivity toward even subtle forms of life. Therefore, many Jain families and traditions continue to avoid potatoes regardless of the farming method.

Takeaway

A Jain following traditional food rules should avoid potatoes grown through aeroponics also.