Even if bottled wine was used to solve the problem of bottle leakage, most bottled wines were still not preserved.

The bottled wines of that year often encountered the situation of being “when they were not there” within a few years at home. The main reason was that the bottle was not closed. At that time, the closure of bottled wine was mainly oiled paper, cork plugs, plastic wrappers (celluloid skins), or iron covers, or iron cover plastic wrappers. Later, the use of spiral plastic caps, spiral metal caps or plastic caps and then wrapped again.

These sealing methods and sealing production processes cannot ensure that bottled wine does not volatilize or leak when stored in a special manner, and it is impossible to preserve most bottled wines for a long period of time.

However, there are still a large number of bottled wines that have been well preserved so far. Some have even “one drop has not been spilled”. When filling, it happens that the "mouth" of the bottle mouth and seal is very "accurate", and "accidentally" meets the proper preservation environment. It is very likely that a bottle of wine is perfectly preserved. However, compared with the sales volume of that year, compared with the consumption of many years, combined with the turbulent years, the old wine that has been completely preserved is almost “a hundred miles” or even “a thousand survives”. Therefore, liquor collection, full of good wine has the highest value.

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