How to clean:
1) Preliminary Check - Check the Small Leafy Greens for the presence of insects; focusing on heavy infestation of any type of insect or even light infestation of aphids and leaf miners. After a visual check, the Mashgiach check 3 handfuls of Small Leafy Greens by putting them into water, agitating, pouring the water through a Kosher Screen and checking the Kosher Screen on a light box for the presence of insects.*
- If 3 or more leaf miners trails are found then the produce must be returned to the supplier. Small white spots indicate the presence of a leaf miner fly. If such spots are present then an additional quantity should be checked for leaf miners.
- If 3 or more aphids are found then the produce must not be used.
- If 10 or more thrips are found then the produce must not be used. Special care should be taken to identify the presence of baby thrips.
2) Prepare Small Leafy Greens for Washing – When relevant, produce must be separated from its head.
3) Prepare Checking Station - Add cold water and sufficient amount of food-grade soap or vegetable wash that contains a surfactant in the ingredients (for example FIT, Monster or Nature Clean) to a clean sink or container. The appropriate water to produce ratio is 3:1 (3 parts water to 1 part produce). The proper amount of vegetable wash/soap is when the soap suds are visible in the water.
4) Soaking & Agitating - Place produce in water ensuring that the produce is completely submerged under water. Produce is then thoroughly but gently agitated. Produce should be agitated in the water for a minimum of 1 minute.
5) Rinsing – Remove a handful of Small Leafy Greens from water and rinse under a strong stream of water (strong water pressure from the tap or spray hose is critical in ensuring the effectiveness of the rinse). Care must be taken to ensure that all crevices and folds are opened while rinsing. Rinse both sides/surfaces of the produce.
NOTE: Steps 2-5 can be performed by anyone who is approved by the mashgiach. Steps 6-9 must be performed by the mashgiach himself.
6) Place Small Leafy Greens in Receptacle – Fill up a receptacle with fresh water. Place a small amount of Small Leafy Greens into the fresh water such that the appropriate water to produce ratio is 3:1 (3 parts water to 1 part produce). Agitate well. Remove a small handful in the palm of your hand; or alternatively, use a “spider” to remove Small Leafy Greens. Remove from the receptacle while shaking out the water from the produce; then place the leaves in a clean container. Repeat until the process has been done to all the leaves.
7) Kosher Screen – Place a clean Kosher Screen in between 2 plastic white colanders (ensuring that the Kosher Screen covers the holes of the colanders) and pour the water from the receptacle through the colanders ensuring that all the water goes into the Kosher Screen. Rinse the receptacle with fresh water and empty the fresh water through the colanders. Let the water flow out completely through the Kosher Screen. Visually check both sides of the top colander to ensure that insects are not caught.
8) Checking Kosher Screen – Place the Kosher Screen on the light box. Use a spray bottle to gently spray water on the Kosher Screen. This allows the debris to spread on the Kosher Screen allowing clearer visibility to see insects. Examine the Kosher Screen on the light box for the presence of insects.
- If 1 or 2 thrips or mites are found then repeat steps 6-8 and re-check**.
- If 3 or more thrips or mites are found then it has been demonstrated that washing was not performed properly and steps 1-8 must be repeated.
- If an aphid is found then steps 1-8 must be repeated.
- Produce may not be used if the Kosher Screen Method has been performed twice and insects are still found on the Kosher Screen.
9) Leaf Sample Checking – 60 leaves must be checked for insects; both sides of the leaf must be checked and cracks and crevices must be opened. If any insects are found then the produce may not be used.
*This check should be conducted one day prior to intended use so that an establishment can return the produce to the supplier if it is found to be infested.**If the washing was not performed in the presence of a Mashgiach then steps 1-8 must be repeated.