The function of butter can increase the flavor, elastic taste and non-stick effect when kneading dough, and can be omitted. Several points for attention in making bread First of all, the temperature control is now summer, and the temperature is relatively high. When the dough is stirred in the bread machine, the friction temperature will also increase, which will affect the overall quality of the dough and lead to the decline of the taste of the bread. Therefore, the relationship between indoor temperature should be considered when making. If it is summer, add some ice water to reduce the temperature, if it is winter, add some hot water. Second, the water control is followed by the above topic, and it is also necessary to pay attention to how much water to add. Although the specific dosage is affected by the humidity, temperature, water absorption rate and other factors of dough, these parameters are difficult to obtain accurately, so they are generally about 20% lower than the formula, and then water is added according to the stirring situation of the dough on the bread machine, and it is increased little by little until it is suitable. Thirdly, when using yeast, we should pay attention to two aspects: 1, which can not be in direct contact with ice water, which will reduce the fermentation ability of yeast. The correct order is to add ice water first, then flour, and finally yeast. 2, can not contact salt, salt is a yeast killer, direct contact will kill yeast.