Most standard household freezers are designed to maintain temperatures well below 20 degrees Fahrenheit (-6.7 degrees Celsius) to ensure the long-term preservation of frozen foods. A typical freezer's temperature range is usually around 0°F to -10°F (-18°C to -23°C). It's challenging to find a conventional freezer that can be set as high as 20°F because such temperatures may not adequately preserve food and could lead to spoilage.
However, there are specialized types of freezers available in the market that can offer higher temperature settings suitable for specific purposes. One example is a "high-temperature" or "pharmacy" freezer. These are medical-grade freezers often used to store temperature-sensitive medications, vaccines, or biological samples that require a temperature range of around 20°F to 25°F (-6.7°C to -3.9°C).
If you genuinely require a freezer that can maintain temperatures around 20°F, consider looking for a high-temperature or pharmacy freezer from suppliers that cater to laboratory or medical equipment. Keep in mind that these freezers may be more expensive than standard household models due to their specialized features.
Alternatively, you can also explore the possibility of adjusting the temperature of a standard freezer. Some freezers might allow for slight modifications to the temperature settings, but keep in mind that altering the temperature significantly beyond its design specifications might affect its efficiency and overall performance.
Always verify the specifications and capabilities of any freezer you consider purchasing, and if you have specific temperature requirements, consult with a reputable appliance dealer or the manufacturer to find the best solution for your needs.