Assemble a vacuum filtration set up. Decant the liquid into the funny leaving the crystalline aspirin in the flask. Add 10 mL of ice water to the flask, swirl, and pour off into the funnel with the aspirin. Use your spatula to scrape the remainder of the aspirin into the funnel. Add and additional 5 mL of ice water to the flask to wash any residual aspirin into the funnel. Leave the suction on in order to draw air through the funnel and dry the aspirin for an additional five minutes.