豆腐和豆腐皮的制作过程纪录片

豆腐皮的制作过程我想知道豆腐皮是如何制作出来的

和豆腐之前的工序一样，后面的就是点脑，打脑，泼皮，压榨，脱布，就是成品了，点脑是很关键的，点脑的水平决定豆皮的质量，口感。

豆腐的一般制作过程是怎样的呢？

豆腐的常用别名有水豆腐、老豆腐。性凉，味甘。归脾、胃、大肠经。其蛋白质、脂肪、碳水化合物、维生素、矿物质、大豆卵磷脂、大豆蛋白等。豆腐营养丰富，又不含胆固醇，具有补中益气的功效，尤其适合高脂血症患者食用。适用量是每天80克。豆腐是我国的一种传统食品，人们把黄豆加水发胀，磨浆去渣，煮熟后加入盐卤或石膏，使豆浆中的蛋白质凝固就做成了豆腐。

豆腐的制作过程及其科学原理简介

【豆腐的制作过程】

1、原料处理。取黄豆5公斤，去壳筛净，洗净后放进水缸内浸泡，冬天浸泡4～5小时，夏天2.5～3小时。浸泡时间一定要掌握好，不能过长，否则失去浆头，做不成豆腐。

2、将生石膏250克(每公斤黄豆用石膏20～30克)放进火中焙烧，这是一个关键工序，石膏的焙烧程度一定要掌握好(以用锤子轻轻敲碎石膏，看到其刚烧过心即可)。石膏烧得太生，不好用；太熟了不仅做不成豆腐，豆浆还有臭鸡屎味。

3、磨豆滤浆。黄豆浸好后，捞出，按每公斤黄豆6公斤水比例磨浆，用袋子(豆腐布缝制成)将磨出的浆液装好，捏紧袋口，用力将豆浆挤压出来。豆浆榨完后，可能开袋口，再加水3公斤，拌匀，继续榨一次浆。一般10公斤黄豆出渣15公斤、豆浆60公斤左右。榨浆时，不要让豆腐渣混进豆浆内。

4、煮浆点浆。把榨出的生浆倒入锅内煮沸，不必盖锅盖，边煮边撇去面上的泡沫。火要大，但不能太猛，防止豆浆沸后溢出。豆浆煮到温度达90～110℃时即可。温度不够或时间太长，都影响豆浆质量。

5、把烧好的石膏碾成粉末，用清水一碗（约0.5公斤）调成石膏浆，冲入刚从锅内舀出的豆浆里、用勺子轻轻搅匀，数分钟后，豆浆凝结成豆腐花。

6、制豆腐。豆腐花凝结约15分钟内，用勺子轻轻舀进已铺好包布的木托盆(或其它容器)里，盛满后，用包布将豆腐花包起，盖上板，压10～20分钟，即成豆腐。

【制作豆腐的科学原理】豆腐的原料黄豆富含蛋白质，蛋白质含量36%～40%，黄豆经水浸、磨浆、除渣、加热，得到的蛋白质的胶体（一种介于溶液和悬浊液、乳浊液之间的混合物）。点豆腐就是设法使蛋白质发生凝聚而与水分离。所采用的凝胶剂包括：盐卤、石膏、酯酸、柠檬酸等都有相同的作用，都可用来点豆腐。将凝胶剂制作为水溶液，属电解质溶液，可以中和胶体微粒表面吸附的离子的电荷，使蛋白质分子凝聚起来得到豆腐。胶体的脱稳，

英语作文题目：potato pancake制作过程

Potatoes are the main food around the world, the consumption after rice. In Europe and the United States table, potato daily eating is French fries and chips. Potato chips is the western most common side dishes, but it has only a history of over 100 years, its invention by accident.

The invention of potato chips is a Native American, named George Garin.

One day in 1853, Eastern New York resort restaurant chef George Garin as usual and fries, one of the guests think he fries coarse, and Garin to French fries, still not satisfied. Angrily, he simply put the potatoes cut into thin slices pot. He wanted to, deep-fried crispy potato chips after the thin, certainly not fork to eat, can play to spite his guests. Who knows, potato chips on the table, the visitor soon put the chips up, be profuse in praise. Since then, crisps became a famous dish in the restaurant. The restaurant is on the packaging, convenient for customers to take food. Of course, due to peel the potatoes chips on hand, extremely limited yield.

Potato chips is widely popular is nineteen twenties . ". The use of the car salesman Hao chips shipped to all parts of the United states. In 1961, he put his crisps company and Texas the frito company merger, vigorously promote his Hao Li chips, so that the chips gradually popular all over the world.我是来看评论的