A cooking apparatus capable of satisfying a heat reflection function while securing a transmittance by applying a variable layer to a glass sheet forming a door includes a cooking chamber, and a door configured to open and close the cooking chamber and provided with a plurality of glass sheets, the door including a variable layer provided on at least one of the plurality of glass sheets and a visible light transmittance variable depending on a temperature.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P.sub.2O.sub.5); 1 to 20 wt % of silicon dioxide (SiO.sub.2); 1 to 20 wt % of boron oxide (B.sub.2O.sub.3); 5 to 20 wt % of one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO.sub.2), vanadium pentoxide (V.sub.2O.sub.5), molybdenum trioxide (MoO.sub.3), or iron oxide (Fe.sub.2O.sub.3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

Household appliances may include partially reflective (e.g., one-way mirror) glass as part of an oven door. The partially reflective glass may transmit light from an interior of the household appliance and may reflect light from outside the household appliance. Accordingly, one can see into the lighted interior but a camera inside the interior cannot see out through the door. In some examples, the household appliance includes a lamp and a camera disposed within the cavity of the appliance. The lamp and the camera are interlocked to protect user privacy by activating the one-way feature of the door glass as needed.

A method for manufacturing a component for a gas hob, the method comprising treating a surface by plasma electrolytic oxidation.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 20 to 50% by weight of silicon dioxide (SiO.sub.2), 7 to 12% by weight of boron oxide (B.sub.2O.sub.3), one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O), and 10 to 20% by weight of sodium fluoride (NaF), 1 to 10% by weight of zinc oxide (ZnO), and one or more of molybdenum oxide (MoO.sub.3), bismuth oxide (Bi.sub.2O.sub.3), or cerium dioxide (CeO.sub.2), and 10 to 40% by weight of titanium dioxide (TiO.sub.2). With such an enamel composition, cleaning is possible in a heating condition of a relatively low temperature and without a soaking process using water.

An enamel composition may be applied to an inner surface of cooking appliance to facilitate cleaning. The enamel composition may include: SiO.sub.2 at 25 to 50 wt %; B.sub.2O.sub.3 at 1 to 15 wt %; one or more selected from among Li.sub.2O, Na.sub.2O, K.sub.2O, and NaF at 10 to 30 wt %; ZnO at 1 to 15 wt %; MoO.sub.3 at 1 to 15 wt %; and one or more selected from among TiO.sub.2, Bi.sub.2O.sub.3, NiO, Co.sub.3O.sub.4, and CeO.sub.2 at 10 to 30 wt %.

The present disclosure relates to an oven cavity having a dielectrically coated glass or glass-ceramic substrate that absorbs electromagnetic radiation thereby increasing the temperature of the substrate and the dielectric coating composition, and emits heat radiation into the oven cavity.

Systems, devices, and methods of use and manufacture are provided for a modular grill and smoker device micro-coated with an oxide layer for cooking food that include a first chamber, a door for opening and sealably closing the first chamber, an airflow corridor creating a hull around the first chamber for channeling air around the first chamber with at least one lower vent and at least one upper vent, as well as integration with electronic user devices.

A glass composition, a cooking appliance having a glass composition, and a method of forming a glass composition may include a glass frit including 15 wt. % to 50 wt. % silicon dioxide (SiO.sub.2), 10 wt. % to 30 wt. % of diboron trioxide (B.sub.2O.sub.3), 5 wt. % to 35 wt. % of zinc oxide (ZnO), and 10 wt. % to 30 wt. % of an I-group oxide. The glass frit may further include at least one of aluminum oxide (Al.sub.2O.sub.3), zirconium dioxide (ZrO.sub.2), or titanium dioxide (TiO.sub.2) by about 0.1 wt. % to 5 wt. %; at least one of sodium fluoride (NaF) or aluminum trifluoride (AlF.sub.3) by about 1 wt. % to 5 wt. %; and at least one of cobalt(II) dicobalt(III) oxide (Co.sub.3O.sub.4), nickel(II) oxide (NiO), iron(III) oxide (Fe.sub.2O.sub.3), or manganese(IV) oxide (MnO.sub.2) by about 1 wt. % to 6 wt. %. The I-group oxide may include at least one of lithium oxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O).

The present invention relates to an enamel composition capable of removing sugars as well as poultry oils as contaminants at a low temperature by using a catalyst oxide, to a manufacturing method therefor, and cooking utensils. The present invention provides an enamel composition, a manufacturing method therefor, and cooking utensils, wherein the enamel composition is capable of removing sugars as well as poultry oils as contaminants at a low temperature by comprising: at least one of SiO.sub.2, B.sub.2O.sub.3, Li.sub.2O, Na.sub.2O, and K.sub.2O; and TiO.sub.2.