JPH02198526A - Quartz glass cooking utensil - Google Patents

Abstract

PURPOSE:To adequately cook even the inside of food, shorten the cooking time period and provide ease of cleaning after cooking, by a method wherein a cooking utensil is composed of quartz glass or made of quartz glass, the quartz glass is heated by a heating media to have it emit heat rays which are given to the food to be cooked. CONSTITUTION:By a method wherein a heater heating sources 2 on which food to be cooked is placed are encased in quartz glass cylinders 1, the fire-end of a frying pan, etc., is made of quartz glass 1, or the internal surface of a cooking utensil is coated with quartz glass, the food to be cooked is uniformly, adequately heated from both inside and outside, cooking residue can be easily cleaned up and especially the cooking time period is shortened because the heat transfer and effective heat-ray radiation effect are improved. When the transparent quartz glass 1 is colored by mixing copper metal, vanadium oxides, etc., in it, the appearance is improved and the permeability of the high energy infrared rays through the quartz glass in the near infrared lay region becomes high, so that the heating effect is improved more advantageously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a quartz glass cooking utensil for cooking food, in which a quartz glass layer is interposed to improve the cooking efficiency of the food and heating medium.

(Prior art) For example, as seen in frying pans, etc., which are frequently used as cooking utensils, most of the contact parts or heated parts are made of metal. Cooking, such as baking, boiling, and stir-frying, was done by applying heat through light irradiation, etc.

In addition, there are high-color cooking utensils made of heat-resistant glass or ceramics, but there is still room for improvement, such as insufficient heat resistance or difficulty in cleaning after cooking.

[Problem that the invention seeks to solve]

In the case of metal cooking utensils, it has been pointed out that because the cooking container is placed directly on top of a gas stove or electric stove, only the surface of the food gets scorched before the fire reaches the inside of the food. Ta.

In addition, as a measure to improve the above-mentioned phenomenon, the glass used does not have sufficient heat resistance, is expensive, and breaks easily, and the glass used, although the heat resistance of the ceramic used is evaluated, The problem is that liquid exuding from the food being cooked soaks into the pores of the ceramic surface, making it difficult to wipe off even when washed after cooking, immediately damaging the aesthetics of the cooking utensils, and leaving the smell of the food being cooked on the cooking utensils. was there.

[Means for solving problems]

In order to overcome the above-mentioned problems, the present invention uses quartz glass that receives the thermal energy of the heating medium used to cook the food to be cooked in gas stoves, electric stoves, frying pans, etc. that cook food with a heating medium in the kitchen etc. Quartz glass is characterized in that quartz glass is combined with a cooking utensil or the cooking utensil itself is made of quartz glass so that heat rays emitted by the quartz glass that has received heat from a heating medium are applied to the food to be cooked. Developed manufactured cooking utensils.

That is, as shown in FIG. 4, a heater heating source (2) carrying the food to be cooked is housed in a quartz glass (1) cylinder and combined, and as shown in FIG. By making the cooking utensil made of quartz glass (1) or by coating the inner surface of the cooking utensil with quartz glass, the inside and outside of the food to be cooked are heated in harmony and moderately, and it is also easy to wipe off the leftovers after cooking. In particular, remarkable improvement effects were observed, such as shortening of cooking time due to enhanced heat conductivity and effective heat radiation effect.

In addition, by coloring the quartz glass (1), which is originally colorless and transparent, by mixing metallic copper, vanadium oxide, etc., the aesthetic appearance is enhanced, and the transmittance of high-energy infrared rays in the near-infrared region of the quartz glass (1) is improved. This increases the heating effect, making it possible to use the heating effect more favorably.

In particular, adding 200 to 400 pplIl of metallic copper and 1000 to 110000 ppl of vanadium oxide has a particularly remarkable heating effect.

[Function and Examples]

Examples of the present invention will be described in detail below, but it goes without saying that the types of food to be cooked, the types of cooking utensils, the types of heat sources, etc. are not limited to these examples.

In addition, the cooking utensils referred to in the present invention include cooking containers, cooking utensils,
Furthermore, it is explained as a general term that includes heating sources.

Example 1. As shown in Figure 4, the heating source of the fish griller is the heater (
2) was stored in a cylindrical colorless transparent quartz glass (1), herring was selected as the food to be cooked, and the number of samples was 50.
Cook for a minute and check for doneness.

As a result, fish prepared using a fish grill that did not use quartz glass had a moderately grilled surface, but 50% of the fish had a blood red color remaining in the internal parts near the bones, whereas fish prepared using a fish grill that incorporated quartz glass were found to have a blood-red color remaining in 50% of the cases. All the fish cooked in the fish grill have no blood red color and are well-cooked both inside and on the surface.14
It has been certified.

Example 2. The quartz glass (1) is colored clear red by adding metallic copper as an ingredient, and the part of the cooking utensil that supports the quartz glass (1) is made of metal or plastic in consideration of strength. Measures have been taken to prevent the edges of the quartz glass from cracking and chipping.

As a result, we were able to obtain cooking utensils that not only look good as kitchen furniture, but also have high strength and a long life despite being made of composite materials.

In addition, as shown in the infrared spectrum diagrams in Figures 1 to 3, colorless and transparent quartz glass has a transmittance of 25% in the near-infrared region.
The degree (Figure 1) is 45-90 when metal tR (Figure 2) and vanadium oxide (Figure 3) are mixed
% transmittance, and as the emissivity of infrared rays to the food to be cooked increases, heat conductivity increases, making it possible to shorten the cooking time to 2/3 compared to the conventional example.

Furthermore, the colored quartz glass becomes heated due to heat sources such as flames.
By acting as an afterburner, the generation of smoke during cooking can be suppressed and good effects can be obtained in terms of environmental hygiene.

It was confirmed that cleaning after cooking completely wipes away not only the deposits but also the odor of the food being cooked, which is advantageous in terms of after-care.

〔Effect of the invention〕

By using the quartz glass cooking utensil of the present invention,
By obtaining effective heat ray radiation through quartz glass, the cooking quality of the food, which previously had different shading between the surface and the inside of the food, has been improved even to the inside, and the cooking time has been shortened, making it suitable for kitchen furniture. The aesthetic appearance of food is enhanced, and aftercare such as cleaning after cooking becomes easier.

Furthermore, since it can be made smaller and lighter than conventional cooking utensils, it is easier to handle when cooking, and the kitchen can be used more widely.

In addition, since the quartz glass acts as an afterburner, the generation of smoke during cooking is suppressed, which is advantageous in terms of environmental hygiene.

[Brief explanation of the drawing]

1 to 3 show infrared absorption spectra of quartz glass used in the quartz glass cooking utensil of the present invention, and each
The figure shows transparent quartz glass, the second figure shows quartz glass mixed with metallic copper,
FIG. 3 shows an infrared absorption spectrum of quartz glass containing vanadium oxide. FIG. 4 shows an example in which the quartz glass cooking utensil of the present invention is applied to a fish fryer, and FIG. 5 shows an example in which the quartz glass cooking utensil of the invention is applied to a frying pan. (1) Quartz glass (2) Heater or support rod Applicant: Toshiba Ceramics Corporation

Claims (1)

[Claims] 1. In cooking utensils such as gas stoves, electric stoves, frying pans, etc. that cook food using a heating medium in the kitchen, etc., a heating medium is used with a quartz glass interposed that receives the thermal energy of the heating medium that cooks the food to be cooked. A quartz glass cooking utensil characterized in that the cooking utensil is combined with quartz glass so that heat rays emitted by the quartz glass that has received more heat are applied to the food to be cooked, or the cooking utensil itself is made of quartz glass. 2. The quartz glass cooking utensil described above, characterized in that the quartz glass is colored by mixing metallic copper, vanadium oxide, etc. to enhance the heat radiation effect of the colored quartz glass.