The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test track. A tire graded 200 would last twice as long on the government test course under specified test conditions as one graded 100.
Most wine racks are designed to allow a wine to be stored on its side. The thinking behind this orientation is that the cork is more likely to stay moist and not dry out if it is kept in constant contact with the wine. Some wineries package their wines upside down in the box for much the same reason.
If you want to make sure your wine is still good without opening the bottle (wine, vinegar or broth), there are some things you can check. This doesn't give you 100% guarantee that the wine is actually any good. Did the bottle lay horizontally (good) or was it standing up (bad).f the cork is pushing the seal out, then your wine may have suffered from heat (the air in the bottle pushes the cork out). This may cause your wine to taste of cork (broth). Remove the seal and check the cork. If the cork is clean, that's good.