stoutfellow | Inconsistent (But Sticky)

Today, ye olde procrastinator got around to some recycling. I had several empty peanut butter jars, and I put them through the usual routine: a soak in soapy water, a couple of rinses with hot water, some action with a Dobie to get the more recalcitrant bits, and one last rinse. This time, it occurred to me to check the lids: they are a different plastic, but are they recyclable? I looked for the triangular symbol, and found it - on two of the four lids. Apparently some are, and some aren't. It strikes me as odd; they were four jars of the same size and same product (40 oz Jif Extra Crunchy), all purchased at the same store, although, admittedly, over a period of two or three months. I don't know whether the ones with recyclable lids were bought earlier than, later than, or mixed among those without.

Is a puzzlement. I guess in future I'll have to check the lids individually.