The present disclosure provides methods for manufacturing a shelf-stable food product. In a general embodiment, the methods include acoustically mixing the food product with an acoustic mixing device during thermal processing of the food product. The methods of the present disclosure provide several advantages including, but not limited to, rapid achievement of a uniform temperature distribution during thermal processing, retention of nutrient content and organoleptic properties of the food product, and retention of particle integrity in the food product during and after mixing.

A radiofrequency heating system and methods for processing agricultural products are provided herein. The method may include positioning an agricultural product between two electrode assemblies of a radiofrequency (RF) circuit, closing the RF circuit, and heating the agricultural product to a threshold temperature in greater than a threshold amount of time.

The invention relates to a feed tank for use in a high-pressure system, said feed tank having a hollow space (3) for accommodating food items, a wall (1) and a temperature-control device (5). The invention further relates to a method for the simultaneous high-pressure and temperature treatment in a high-pressure tank.