Do you have a crawl space under the house or kitchen? Is your house climate controlled? Do you keep windows and doors open?

My house is piers construction over dirt. It did not have a vapor barrier when I moved in, and was crazy humid. A company came in and ”encapsulated” it, with a plastic-like sheathing over the dirt, they sealed off the crawl space vents, and installed a dehumidifier in the crawl space. It was expensive, but worth every penny. They gave me a portable monitor to use inside the house that tells me the temperature and humidity in the crawl space. I think it even shows the temperature and humidity on the inside. Ideal is 45-65% in the crawl space. They can adjust it in the crawl space. I keep doors and windows closed, and use AC in summer. It’s REALLY comfortable with the encapsulated dehumidifier in the crawl space.

Using AC will dehumidify. You could consider a ductless AC unit in the kitchen.

I have not researched other general purpose dehumidifiers.

Unless the kitchen is closed off from the rest of the house with a door, it won't be easy to "isolate" the humidity in just one area. Look at a whole house dehumidifier tied into whatever HVAC systems you have in the house.

Kitchens typically include a number of moisture point sources such as dishwashers, microwaves, and cooktops. Point source ventilation is an important strategy for controlling relative humidity. A cooktop/range vent hood--vented to the exterior--should be used when cooking to exhaust moisture. Beyond that, dehumidification is best performed by a central air conditioning system during summer. If you have high relative humidity during "shoulder seasons" when neither heating nor air conditioning is required, you may need to integrate a central dehumidifier into your HVAC system.

As others have said, a whole house humidifier built into the HVAC system, is the best solution.

If the environment is dry, you may need a humidifier to keep relative humidity in in your target range (e.g., in the winter in heating climates.) If the relative humidity is high (e.g., summertime conditions in most climate zones,) your air conditioner should work to keep it in your desired range. You may find the cost of a whole-house dehumidifier to be sobering. I have one on each level of my home. With controls and installation they cost me $3,500 each and that's a discounted price from my trade partner. And they're very expensive to operate, too.

Contact your local HVAC w to evaluate your vapor sealing and HVAC as a whole. Summer cooling seasons need a multi stage systems to avoid low delta high humidity overnights.