Is it safe to plant vegetables in the blue 55 gallon barrels if they previously contained white vinegar?

Question: Is it safe to plant vegetables in the blue 55 gallon barrels if they previously contained white vinegar? Or will the vinegar kill the plants? The barrels have been thoroughly washed. Answer: Jonathan Foster, Home Horticulture Outreach Professional I don’t think the previous presence of vinegar presents any immediate threat to the plants themselves. read more Is it safe to plant vegetables in the blue 55 gallon barrels if they previously contained white vinegar?