Choosing food processing equipment

Food-processing equipment for game and produce carries a stated capacity and pressure range, but reading the gauge isn’t the whole safety picture. The pressure and time that are actually safe come from a tested, current process for that specific food, jar size, pack style, and your altitude — the equipment’s own labeling is only part of the equation.

The short answer

Pressure canning follows the tested process, not just the dial

Batch capacity and volume

Capacity sets batch size. Overfilling a canner or processor past its rated volume can affect both safety and result.

Pressure range and canning

A canner’s pressure range tells you what the equipment is built to run, not what’s approved for a given food — that comes from the tested process itself. Low-acid foods like game meat require pressure canning rather than water-bath methods, but the specific pressure and time still come from that tested process, run within the canner’s own operating range.

Use designation

The use designation limits what belongs inside. Check that the equipment is rated for what you’re actually processing before you start.

Tested process and instructions

Work from a current tested process — the kind published by USDA and NCHFP extension guidance — that specifies pressure and time for the food, jar size, and altitude, and operate the canner within its manufacturer instructions rather than an older or informal recipe.

What the listings actually show

The current catalog includes 6 canning and processing units from 1 brand. Nearly every listing states canner capacity, pressure range, and approved use.

Before you buy

When in doubt on timing or pressure, check current tested guidance, not memory.