Here’s a copy of a recent receipt from Trader Joe’s for a Bike Blending event that served 100 people.

To serve the most people in the least time, here are the factors to consider:

– Ingredients. This is the easiest. Ingredients cost $0.60 per 8 oz smoothie. Scale this to meet your crowd’s needs.

– Crewmembers. This helps you prepare the pitchers of ingredients faster. 1 person per bike for a relaxed event (100-200 servings). 3 crewmembers per bike if you think you’ll be slammed (300 – 500 servings).

– Number of Fender Blender bikes. Increase the number of bikes to maximize your participation levels when maximum crowd flow is expected. Each bike can do 100- 250 8 oz smoothies per hour, depending on the number of crewmembers.

– Type of pitcher: See the Osterizer v. High Performance comparison. It’s easier to serve large crowds with a high performance blender.

– Number of pitchers. Two pitchers are incredibly useful. Make double the same amount of time by prepping a second batch while blending the first. If you foresee having vegan/dairy-free smoothies you might want a pitcher just for those.