The bid price displayed in most quote services is the highest bid price in the market. The ask or offer price on the other hand is the lowest price a seller of a particular stock is willing to sell a share of that given stock. The ask or offer price displayed is the lowest ask/offer price in the market (Stock market).
Pure maple syrup should be kept in a cool, dark place for up to two years until opened and then refrigerated after opening where it will last one year. If excess water is present or if containers are not clean when filled, there may be the growth of bacteria, yeast or mold during storage.
Maple syrup should be stored in the refrigerator. It doesn't have to be, and it will probably take at least a year for it to grow any mold if left in the pantry. But it will last longer in the refrigerator; I've seen refrigerated jars 3+ years old without any mold.