Plastic containers often have difficulty drying completely in the dishwasher due to a combination of factors:
Insufficient heat: Plastic does not retain heat as well as glass or metal, and it takes longer for plastic to heat up and dry. Dishwashers typically use high temperatures during the drying cycle to evaporate moisture from dishes and utensils. However, plastic containers may not get hot enough or retain the heat long enough for effective drying.
Lack of condensation: The drying process in dishwashers often relies on condensation to help remove moisture from the dishes. During the final rinse cycle, the dishwasher heats the dishes with hot water, and when the cycle ends, the hot dishes meet the cooler air, causing the water to evaporate and form condensation. This condensation then drips off the dishes, aiding in the drying process. Plastic containers, being less heat-retentive, may not produce enough condensation to facilitate drying.
Shape and design: Plastic containers often have complex shapes, ridges, and corners that can trap water droplets. The water tends to collect in these areas, making it difficult for the dishwasher's airflow to reach and dry those spots effectively.
To improve the drying of plastic containers in the dishwasher, you can try the following tips:
Opt for the top rack: Place plastic containers on the top rack of the dishwasher. The top rack is generally closer to the dishwasher's heating element, which can provide more direct heat for better drying.
Use the heat or air-dry option: Some dishwashers offer a heat or air-dry setting. Selecting this option allows for an extended drying period, giving the plastic containers more time to dry. Keep in mind that using the heat drying option may consume more energy.
Open the dishwasher after the cycle: Once the dishwasher completes its cycle, you can open the dishwasher door slightly to allow fresh air to circulate, which can aid in drying. Be cautious when doing this, as the dishes may still be hot.
Towel-dry if needed: If you find that your plastic containers are consistently not drying, you can manually towel-dry them after the dishwasher cycle is complete. This ensures that any remaining moisture is removed, minimizing the risk of water spots or moisture-related issues.
Alternatively, if complete drying of plastic containers is crucial, you may consider hand-washing them and air-drying them outside of the dishwasher.
It's worth noting that the drying performance can vary among different dishwasher models, so referring to the manufacturer's recommendations and guidelines specific to your dishwasher can also be helpful.