1. Shelf life of prepared bread (such as fluffy ham bread, hot dog bread, hamburger and corn ham salad bag): 1 day. This kind of bread has the shortest shelf life. The reason why this kind of bread goes bad quickly is not the aging of starch, but the corruption of stuffing (meat and vegetables). Hot-processed bread (that is, the meat in the bread is shaped with dough and baked in the oven), even if it is refrigerated in the refrigerator, the shelf life will not exceed one day (starch aging), and the taste is greatly sacrificed, so it can be stored at room temperature. Cold-processed bread (that is, the meat in the bread is cooled from the oven and put in, such as sandwich bread and some salad bread) must be refrigerated in the refrigerator to have a shelf life of 1 day, and the shelf life at room temperature should not exceed 4 hours. If you don't eat this bread right away, you'd better refrigerate it. Second, the shelf life of sweet bread and toast (without stuffing) (such as milk-flavored toast, sweet pineapple bread, fancy milk bread): 2-3 days, the shelf life of sweet bread is longer. During the shelf life, the taste of bread can basically be guaranteed not to change much, that is, the bread will still be soft (provided that your bread is really ready). Three, sandwich bread, sandwich toast (such as storage-resistant soft bread (such as bean paste stuffing, coconut stuffing, lotus paste stuffing), can be stored for 2-3 days. Meat-filled bread (such as chicken stuffing) can only be stored for 1 day. 4. Danish bread (such as croissants and Danish grape rolls) shelf life: 3-5 days Danish bread has a long shelf life. However, please note that the shelf life of Danish bread with meat stuffing (such as tuna Danish bread) is only 1 day. 5. Shelf life of hard-shell bread (such as baguette): The most attractive thing about 8-hour hard-shell bread is its hard shell. However, after baking, the moisture inside the bread will continue to penetrate to the outside, which will eventually lead to the softening of the shell. Hard-shell bread will be as hard to swallow as leather if it lasts for more than 8 hours. Even if it is baked again, it is difficult to restore the taste of just baked. Note: Hard-shell bread should not be put in plastic bags, but in paper bags. (Thanks to Boyou Xiaoping) 6. The shelf life of bagels is 5-6 days. The bagel is simple to make, unique in taste and long in shelf life. It should be noted that the concentration of syrup used to cook shellfish must be enough, otherwise the shelf life will be shortened. Seven, heavy oil bread (such as raisin almond bread) shelf life: 1 week to half a month. Heavy oil bread has high oil content, high sugar content and long shelf life. But be careful not to reduce oil and sugar at will when making, otherwise the shelf life will not be so long except for affecting the taste.