A longitudinally movable infeed mechanism that allows for variations in the effective length of a peeler that uses rotating rolls to clean, peel or otherwise treat the exterior of objects, such as potatoes. The infeed mechanism has a surface, which can be the upwardly-facing surface of a conveyor belt, that conveys or is part of a structure that conveys the objects into the peel bed. A terminal end of the surface may move longitudinally parallel to the rolls, and may have a wall that prevents objects from moving past it. Thus, movement of the terminal end and wall defines the effective peel bed length and restricts the objects to that peel bed, permitting variation in amount of peeling by movement of the infeed mechanism.

A method for preparing a sword bean tea is provided. In the method, a washed sword bean or a pod of the sword bean is cut into a predetermined size. The sword bean or the pod of the sword bean is dried at 30 C. to 40 C., for 24 hours to 72 hours. The sword bean or the pod of the sword be is roasted at 250 C. to 400 C. for 10 min to 30 min. The sword bean or the pod of the sword bean is left at 70 C. to 100 C. for 3 min to 10 min, and the sword bean or the pod of the sword bean is then stirred. The leaving and the stirring are alternately and repetitively performed five times. The sword bean or the pod of the sword bean is roasted at 180 C. to 200 C. for 3 min to 5 min.

An apparatus includes a first production line configured to generate aqueous ozone with a first ozone concentration. The apparatus also includes an additional production line configured to generate aqueous ozone with an additional ozone concentration. The first production line and the additional production line include a flow switch, where fluid is configured to flow through the flow switch. The first production line and the additional production line include an ozone generator, where the ozone generator is configured to generate ozone when the fluid flows through the flow switch. The first production line and the additional production line include a fitting coupled to the flow switch and the ozone generator, where the fitting is configured to combine the generated ozone and the fluid to generate the aqueous ozone. The first production line is configured to generate aqueous ozone independently from the additional production line.

The invention concerns a method for drying at least one cell of the electrostatic precipitator of a smoke treating unit in a system of a coffee beans roasting apparatus and a smoke treating unit, said method comprising the step of passing hot air through said cell, while said cell is positioned inside the electrostatic precipitator and while said cell is switched off.