Some complimented the aggressive composition, while others found it to be bland and tasteless. Carbon monoxide is colorless, odorless and tasteless, but highly toxic. They are colourless , tasteless and odorless gases. Carbon monoxide is colorless, odorless, and tasteless, but highly toxic. Pure starch is a white, tasteless and odourless powder. It is difficult to detect because it is colorless, odorless, and tasteless. Methane is an odorless, tasteless, and colorless gas. It is odourless, tasteless and water-soluble. The poison is odourless and tasteless. It is a lightweight inexpensive oil that is odorless and tasteless. UHMWPE is odorless, tasteless, and nontoxic. The noble gases are colorless, odorless, tasteless, and nonflammable under standard conditions. Cellulose acetate is non-toxic, odorless, tasteless, and weakly flammable. James Kendrick called it "loud, vicious, tasteless and inane". These two substances taste bitter to some people, but are virtually tasteless to others.