Single Serving Coffee Machines
Keurig machines brew K-Cup beverages by piercing a foil seal on the top of the cup with a spray nozzle. The machine also pierces the bottom of the plastic pod so the liquid can leave the cup. Coffee grounds that are contained inside the K-Cup pod are in a paper filter. Hot water is then forced under pressure through the K-Cup pod, passing through the grounds and through the filter.
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"I feel bad sometimes that I ever [invented the K-Cup],"