How to insert data in the table without substituting the variable?

I have a rake file that create a lot of items.

namespace :db do
  namespace :seed do
    desc "items table"
      task :items=> :environment do
        Item.create(name: "first_name", process: "clean the item #{test} then pack and send to #{location}")
        ................................................
      end
  end
end

when i do rake db:seed:items I am not able to insert this data in the table without substituting the variable. Is there a way to insert this data without variable substitution so that i can substitute the variable later?