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How-To Guide

How to Harvest & Wash Homegrown Vegetables Safely

The cleanest harvest starts before the kitchen. Pick into a clean container, keep produce out of sun, wash your hands, and rinse vegetables under running potable water—without soap.

Wicker basket of lettuce, tomatoes, and a pepper beside carrots rinsing under a faucet, with shears and gloves on a bench
Illustration: harvest basket and rinsing carrots. Not a photograph. Not a San Diego bed.
Now

Pick in the cool morning into a clean container.

Why

Water, soil, tools, animals, and hands can move microbes onto produce.

Next

Rinse under running potable water — no soap — then cool promptly.

Kit

  • Clean harvest basket or food-safe container
  • Clean knife or pruning snips
  • Gloves for thorny or soil-covered crops
  • Potable running water
  • Clean produce brush for firm vegetables
  • Clean towels or salad spinner
  • Refrigerator containers or bags
Illustration of pick, rinse, and dry for harvested greens
Illustration: pick, rinse, dry. Not a photograph. Not a San Diego bed.

Do this

  1. Harvest during the cool morning

    Pick after dew dries but before produce heats in direct sun. Use shade while you work, and harvest only sound produce for storage.

    UC MG.

  2. Use clean hands, tools, and containers

    Wash hands before harvest and after handling compost, soil, animals, or waste. Start with a clean basket and cutting tool.

    • Do not reuse a container that held chemicals.
    • Keep pets and livestock out of vegetable beds.
    • Set harvested food on a clean surface, not bare soil.

    UC MG.

  3. Remove field soil without bruising

    Gently shake or brush off loose soil outdoors. Cut, do not tear, when a crop needs a clean stem.

    UC MG.

  4. Rinse under running potable water

    Wash produce under cool running tap water. Rub firm produce with clean hands or a clean produce brush.

    UC MG.

  5. Dry and cool promptly

    Remove excess water with a clean towel or spinner and refrigerate crops that benefit from cooling. Keep cut produce cold and do not leave it at room temperature for extended periods.

    UC MG.

  6. Keep harvesting to keep plants producing

    Check fast crops frequently. Pick outer lettuce leaves while leaving the center intact, and remove mature squash, cucumbers, beans, and peppers so plants continue directing energy into new flowers and fruit.

    UC MG.

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