Why We Don’t Recommend Washing Machine Conversions

A washing machine can look like an inexpensive way to spin-dry greens, but it was designed for a very different job. For delicate produce, we care about two things that a clothes washer was not designed around: cleanability for food handling and controlled spin force.

Designed for clothing, not food

Washing machines contain internal areas, mixed materials, seals, pumps, and plumbing that can be difficult to inspect and clean thoroughly. They are not purpose-built as food-processing equipment. Farms considering any converted equipment should evaluate whether it can be cleaned and sanitized effectively and confirm any applicable requirements with their local or state food-safety authority.

More force is not always better

Clothes washers are designed to remove as much water as possible from saturated fabric. Many machines operate at high spin speeds, and the combination of RPM and basket diameter can create far more outward force than delicate greens need.

That is the opposite of our goal. We want to shed excess water from the leaf surface without squeezing or pressing the greens against the basket. Excessive force can crease delicate leaves and may reduce quality and shelf life even when the damage is difficult to see immediately.

What our testing showed

We tested the Greens Spinner using moisture measurements, RPM measurements, force calculations, and shelf-life observations. The goal was not to make greens as dry as possible. We found that leaving a small amount of moisture produced better quality than aggressively overdrying the crop.

Our standard configuration is designed to produce about 20–21 PSI of pressure on the greens. In our testing, that provided a useful balance: enough force to shed excess water, but low enough to protect delicate leaves.

Why the Greens Spinner runs slower

The Greens Spinner is intentionally designed to dry greens gently rather than wring water out of them. A typical workflow is to spin for one to two minutes, stop and gently shake or redistribute the basket, and then spin again if needed.

That process may take a little longer than an aggressive high-speed spin, but the objective is better product quality and longer shelf life—not simply the shortest possible cycle.