Banks are sterilized in order to kill all micro-organisms and bacteria, which subsequently can lead to fermentation products, souring or mold. Definitely the best banks to sterilize. So homework will last much longer and the risk of fermentation is reduced to a minimum. But even a long pre-sterilization of the jars will not give 100% guarantee that winter won't blow the Bank. Here the important role played by the products themselves.
So is it possible to do without sterilization? If in the winter you roll a compote of fruit or berries, the banks are not necessarily sterilized. As practice shows, it is enough to boil the syrup, pour it in a jar with stacked it with fruit or berries, wait 15 minutes, then drain the syrup back into the pot again to boil again pour in a jar and roll up. The Bank stands to turn upside down and wrap the day in a blanket. Rolled therefore fruit drinks are fine. With this method a completely unlikable to sterilize banks over steam, but still before to lay in her fruits, the Bank must be well washed with soap or with baking soda, rinse and dry.
As for the jam, everything is ambiguous. But to be safe it is better to sterilize the jar over steam or in the oven. So jam just will not ferment. Some have already rolled, sterilized jars, putting them in a pot of water. This method is also good, it gives a strong guarantee that homework will not deteriorate over time.
Lecho, salads, various hot close only in sterilized jars. The sterilization time should be 15-20 minutes, no less.
Banks with cucumbers and tomatoes can not be sterilized. They are filled with hot brine and put in a dark place for 3 days, after which the brine is drained, boiled again and poured into the jar. With this method, sterilization is not needed, and cucumbers are all winter.
Sterilization of cans is desirable, but optional process. It is understood that everything depends not only from the jars and lids, but also from products. Shelf life can be extended by putting in a jar, a slice of lemon or a little more sugar, if we are talking about jam or compote. If you are afraid for your workpiece, then, of course, it is best to pre-sterilize jars, it will give confidence that products will not deteriorate, and in winter you will enjoy the delicious and tasty pickles, jams, compotes and marinades homemade.