Some consumers are concerned about food waste, especially as the cost of groceries remains high. Here are a few hacks to keep your produce fresh for weeks.Bananas spoil quickly because their stems release a natural gas that speeds up ripening. To slow this process, wrap the tops in plastic wrap or foil. This traps the gas and extends their freshness by several days.Lettuce often wilts in the fridge, even in the crisper, due to water loss. To keep it crisp for up to 30 days, wash, dry, and wrap it in aluminum foil before storing it in the fridge.Berries can spoil fast, but soaking them in a mixture of one part vinegar to three parts water for 10 minutes, then rinsing and drying them thoroughly, can help. Store them in a paper towel-lined container to fight off mold and keep them fresh for up to two weeks.For avocados, stop leaving them on the counter. Instead, place them in the fridge's crisper drawer to keep them fresh for up to two weeks. When ready to eat, leave them on the counter for a day or two. If you cut one open and use half, leave the pit in, add a little lemon or lime juice, then wrap tightly in plastic or use an airtight container to slow down browning.