Jif’s parent company, The J.M. Smucker Company, has issued a nationwide recall on its peanut butter products. Given it’s such a popular household item, many people have been checking their peanut butter jars, and there is some confusion around how to actually figure out if one needs to be tossed. The advisory says to check for the “lot code number” to see if you have a jar that is part of the recall. (The entire list of recalled products can be found here.) Here’s how to find the lot code number on a Jif peanut butter jar: First, look for the “Best if used by” date. There should be a set of nu…