Can compressed biscuits be boiled in water and steamed with dough?

You can't. Compressed biscuits are made of puffed flour, and steamed bread is a kind of food steamed with fermented flour, so compressed biscuits cannot be steamed with steamed bread after soaking in water. Compressed biscuits are crisp, soft and non-absorbent, and are suitable for long-term storage and transportation because they are sterilized at high temperature and high pressure during expansion.