The first breast milk depot in Suffolk County opens Tuesday with a ribbon-cutting ceremony at noon at Peconic Pediatrics, 34 Commerce Ave., in Calverton.

The depot is a drop-off point for mothers who wish to donate excess breast milk to help save lives and improve the health of premature babies whose mothers have difficulty providing adequate amounts of milk.

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“We are excited to open a depot in Suffolk County at Peconic Pediatrics so that women on Long Island have a new location to drop off their extra milk,” Julie Bouchet-Horwitz, founder and executive director of the New York Milk Bank, which opened in September in Hastings, said in a news release. “We now have 21 depots throughout New York state and one in Maryland. This milk is a medicine to many infants and lifesaving to preemies, and we are doing everything we can to make sure that milk is readily available to all infants in need.”

NYMB screens and tests donors who have extra breast milk, collects and pasteurizes the milk and then distributes to hospitals and the community throughout New York state.

Peconic Pediatrics is a division of Allied Physicians Group. Macaluso Medical, another division of Allied Physician’s group, opened a depot in New Hyde Park earlier this year.