First, the purpose of brushing flowers and the selection of raw materials-the process of cutting the surface of raw materials into certain patterns and stripes, so that they shrink or curl into flowers when heated. The purpose of cut flowers is to shorten the ripening time, make the heat penetration balanced, and achieve the consistency of raw materials inside and outside. Selection of raw materials: generally, there are plastic fish, square meat, stomach, kidney and heart of livestock, gizzard of poultry, squid, abalone and so on. Plant raw materials include dried bean curd, cucumber and lettuce. The raw material suitable for the cutting knife must be: 1, thick, which is not conducive to the balanced penetration of heat, or too smooth to wrap the juice, or has an odor that is inconvenient to emit in a short time. 2. The raw materials have a plane structure with a certain area, which is beneficial to the implementation of flower cutting and the extension of knife lines. 3. The raw materials are not easy to break, have certain elasticity, can shrink or curl when heated, and can highlight the aesthetic feeling of the cut pattern. Second, the basic knife method of flower arrangement In the process of flower arrangement, most of them are the comprehensive application of flat, straight and oblique knife methods, so some people call it mixed knife method. The basic cutting methods of flower arrangement are direct cutting, oblique cutting 1 and direct cutting. The surface of raw materials has a certain depth of cutting method, which is suitable for thicker raw materials. 2. Oblique knife method is to cut a certain depth of knife lines on the surface of raw materials, which is suitable for slightly thinner raw materials. There are also positive and negative oblique strokes. 3. There are usually three kinds of mixed knives: (1) oblique knife method and straight knife method, such as wheat ear flower knife and fish gill flower knife. (2) The straight knife method is mixed with the straight knife method, such as litchi flower knife and double-sided flower knife. (3) oblique knife method and oblique knife method are mixed, such as pine cone flower knife. Third, the flower knife method (1) Common flower knife methods Chrysanthemum flower knife, wheat ear flower knife, litchi flower knife, pine cone flower knife, twist knife, fish gill (bergamot, eyebrows, comb) flower knife, lantern flower knife, bamboo flower knife, shark fin (jade wing) flower knife, sawtooth (2) Whole fish flower knife consists of straight flower knife, oblique flower knife, and so on. Matters needing attention in flower arrangement 1. Flexible use of knife cutting method according to the texture and shape of raw materials. The angle of the flower knife is consistent with the thickness and pattern of the raw materials. 3, the depth of the flower knife and the knife distance should be consistent. 4. The shape of the flower knife should conform to the thermal characteristics and be applied differently.