How many peanut M and Ms fill a 16 ounce Christmas tree apothecary jar?

The number of peanut M&M's that can fit in a 16-ounce Christmas tree apothecary jar depends on its dimensions, but a rough estimate is around 200 to 250 peanut M&M's. Peanut M&M's are larger than regular ones, so the exact count may vary based on the specific jar shape and size. For a more accurate estimate, you could fill the jar with water to measure its volume, then calculate how many M&M's fit based on their average size.