Middleton's Mustard Museum may be closing its doors in May. That from the owner and curator, Barry Levinson, in an interview with the Wisconsin State Journal. Levinson is asking a Dane County committee to approve a cheap sale of the business to a third party. Levinson is also requesting the Community Development Block Grant Committee take a $124,000 loss on a loan that it received back in 2009 when the museum moved from Mt Horeb to Middleton. The $200,000 , 10 year loan is due in 3 years.