My potato had a mushroom shaped internal cavity ( lemmy.world )

The_v , 2 months ago

This is referred to as hollow heart.

It usually indicates as shortage of available calcium in the plant as the tuber grows. Basically the same thing as blossom end rot in tomatoes, peppers etc.

Some varieties are more prone to developing this than others.

athos77 , 2 months ago

The Internal cavities are usually a result of poor growing conditions.