Molecular sieves are used in everything from heavy industry to laboratory work. For example, J.T. Baker Chemical recommends a type 3A molecular sieve for removing atmospheric water from acetone-based solvents before using them to prepare samples for electron microscopy. Water molecules are much smaller than acetone and will be readily absorbed into the sieve. Conversely, the natural gas industry uses large-scale molecular sieves of varying porosities to remove water, mercury, sulfur and carbon dioxide from raw natural gas. Molecular sieves are so sensitive and specialized that they are also used to remove unwanted odors and tastes from food and beverage products.