Can You help with the best way to approach my following problem and avoid sin?

[Shri Hrushikesh asked:Dear Swami, Request you to kindly help us with the answers for below question. Every year we celebrate the birthday of my daughter. During this event the guests are served with a meal. Some guests leave food in plates. I along with the help of my wife collect all that food from the trash and feed it to the animals. However, my friend says, collecting the leftover food from trash is not healthy and will bring disease due to bacteria and viruses in the leftover food. He says let the people who waste suffer. But I am worried that because I am the host who served the food to those guests. I am also indirectly involved contributing to the food wastage. Can You help with the best way to approach this problem and avoid sin? If I will also attract sin as a party host due to food wasted by the guests? At Your Divine Lotus Feet, Hrushikesh]

Swami replied:- What you are doing is the best and no sin will come to you. The argument of bacteria is false.

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