• 艹(grass; plant)
• 烝(steam; vapor rising from fire)

Water vapor rising from fire cooks vegetables, which is the steaming method.

• 米(rice; rice grain)
• 且(add; pile up)

Rice with its bran still intact and layers piled on top feels rough and coarse because it hasn't been milled finely yet.

• 米(grain; rice)
• 分(divide; separate)

Powder is rice divided into small pieces and ground into fine particles.

• 艹(grass; plant)
• 烝(steam; vapor rising from fire)

Water vapor rising from fire cooks vegetables, which is the steaming method.

• 米(rice; rice grain)
• 且(add; pile up)

Rice with its bran still intact and layers piled on top feels rough and coarse because it hasn't been milled finely yet.

• 米(grain; rice)
• 分(divide; separate)

Powder is rice divided into small pieces and ground into fine particles.