釉里红瓷是传统陶瓷中的艺术珍品，属于元代中期景德镇劳动人民的重要发明之一。但数量极少，可谓凤毛麟角。原因是铜离子对温度极为敏感，在窑炉中火候不到，呈现黑红色或灰红色；火候销过铜离子便挥发，从釉层中逸出，呈现特有的飞红现象或干脆退色，纹饰不连贯。当时烧柴窑很难控制窑温，只有凭把桩师父的经验与取出火照对比，无法大规模生产。而且元人尚白，汉人尚红，民族认同感也有别，所以釉里红产量一直很小。

Glaze red porcelain is an art treasure in traditional ceramics, which belongs to one of the important inventions of Jingdezhen working people in the middle of Yuan Dynasty. But the number is very small, it is rare. The reason is that copper ion is very sensitive to temperature and can not be heated in kiln, showing black red or grayish red. At that time, it was difficult to control the kiln temperature. And Yuan people are still white, Han people are still red, national identity is also different, so glaze red production has been very small.

釉里红瓷制作工序与同时代的青花瓷大体相同。它是以氧化铜作着色剂，于胎上绘画纹饰后，罩施透明釉，在高温还原焰气氛中烧成。因红色花纹在釉下，故称釉里红瓷。

釉里红(underglazered)是元代景德镇窑创烧的一种釉下彩绘。釉里红即釉下的红色，它以氧化铜在瓷坯上着彩，然后施透明釉，1300℃还原焰烧成。釉里红的最大特点是烧制难度大，成品率极低。它是以铜为着色剂，在白胎上直接绘制各种图案纹饰，在上面施一层釉，铜在高温还原焰中发出了红色，所以名叫“釉里红”。

Glaze red porcelain production process and the same era of blue and white porcelain roughly the same. It is made of copper oxide as colorant, painted on the tire, covered with transparent glaze, burned in high temperature reduction flame atmosphere. Because the red pattern is under the glaze, it is called red porcelain in the glaze.

Glaze red (underglazered) is a kind of underglaze painting created by Jingdezhen kiln in Yuan Dynasty. Glaze red is underglaze red, it with copper oxide on the porcelain billet, and then apply transparent glaze 1300℃ reduction flame. The biggest characteristic of glaze red is the difficulty of firing and the low yield. It is to use copper as colorant, draw all kinds of patterns directly on the white tire, apply a layer of glaze on it, copper in the high temperature reduction flame issued red, so called "glaze red ".

釉里红瓷是指用铜红料在胎上着彩，然后罩以透明釉在高温还原气氛中一次烧成，使釉下呈现红色花纹的瓷器。由于釉里红以铜红料为呈色剂，铜红釉在烧造技术上难度很大，正常显色不仅与彩料中的铜含量和基釉的成分有关，并且对烧造的气氛和窑温的要求都十分敏感，配方和烧成条件的任何细小变化都会导致色调不正，因此发色纯正的釉里红瓷在元代很少见，大多是灰红色。明代洪武时期釉里红仍然较少，发色多是比较淡的红色或偏灰的红色，但较之元代有了很大提高，永乐宣德时期的釉里红发色极佳，浓厚鲜艳似宝石，也有淡红色的，这与当时的透明白釉提炼已达到极高水平有关。宣德以后釉里红走下坡路，直到清代康、雍乾三朝才得以复苏，这时的釉里红发色较为纯正艳美。

Glaze red porcelain refers to the porcelain with copper and red material on the tire, then covered with transparent glaze in a high temperature reduction atmosphere, so that the glaze presents a red pattern. Because the red glaze is made of copper red material, it is very difficult to make copper red glaze. Normal color development is not only related to the copper content in the color and the composition of the base glaze, but also sensitive to the burning atmosphere and kiln temperature. In the Hongwu period of Ming Dynasty, the glaze red was still less, and the hair color was mostly light red or grayish red, but it was greatly improved compared with the Yuan Dynasty. This is related to the high level of transparent white glaze extraction at that time. After Xuande glaze red downhill road, until the Qing Dynasty Kang, Yongqian three dynasties to recover, when the glaze red hair is more pure and beautiful。

此件釉里红鱼草纹双龙耳盘口瓶，高：38cm,底径：11cm,口径：8.5cm,瓶盘口，细颈，圈足 ，双耳，颈部蕉叶纹，腹部绘画鱼草纹，瓶身釉里红，画面细致，层次鲜明。其线条柔美起伏，尽见迤逦之姿，器身匀净莹亮，静穆古雅，胎骨细薄坚致，丽质怡人。整体造型轻盈秀美，构图布局舒朗，画面细致生动，线条优美，色彩雅丽，纹饰精美，绘工熟练胎骨洁白坚致，丽质怡人由于釉里红是难以烧造的，故此件至为可贵，有较高的收藏价值。

This glazed red cod grass double dragon ear disc bottle, high :38 cm, bottom diameter :11 cm, caliber :8.5 bottle disc mouth, fine neck, circle foot, double ear, neck banana leaf grain, abdominal painting fish grass grain, bottle body glaze red, the picture is meticulous, the level is bright. Its lines are soft and undulating, see the posture of the body, the body is clear and bright, quiet and elegant, thin and firm fetal bones, beautiful and pleasant. The whole shape is light and beautiful, the composition layout is comfortable, the picture is meticulous and vivid, the line is beautiful, the color is elegant, the pattern is exquisite, the painter skilled fetal bone is white and firm, the beautiful quality is difficult to burn because of the glaze red, so this piece is very valuable and has high collection value.